Remove experimental option from unit tests

The postgres statistics collector sometimes massively underestimates the
number of distinct state groups are in the `state_groups_state`, which
can cause postgres to use table scans for queries for multiple state
groups.

We fix this by manually setting `n_distinct` on the column.

.github/workflows/docs.yaml

@@ -3,7 +3,12 @@ name: Deploy the documentation
 on:
   push:
     branches:
+      # For bleeding-edge documentation
       - develop
+      # For documentation specific to a release
+      - 'release-v*'
+      # stable docs
+      - master
 
   workflow_dispatch:
 
@@ -20,12 +25,42 @@ jobs:
           mdbook-version: '0.4.9'
 
       - name: Build the documentation
-        run: mdbook build
+        # mdbook will only create an index.html if we're including docs/README.md in SUMMARY.md.
+        # However, we're using docs/README.md for other purposes and need to pick a new page
+        # as the default. Let's opt for the welcome page instead.
+        run: |
+          mdbook build
+          cp book/welcome_and_overview.html book/index.html
 
-      - name: Deploy latest documentation
+      # Figure out the target directory.
+      #
+      # The target directory depends on the name of the branch
+      #
+      - name: Get the target directory name
+        id: vars
+        run: |
+          # first strip the 'refs/heads/' prefix with some shell foo
+          branch="${GITHUB_REF#refs/heads/}"
+
+          case $branch in
+              release-*)
+                  # strip 'release-' from the name for release branches.
+                  branch="${branch#release-}"
+                  ;;
+              master)
+                  # deploy to "latest" for the master branch.
+                  branch="latest"
+                  ;;
+          esac
+
+          # finally, set the 'branch-version' var.
+          echo "::set-output name=branch-version::$branch"
+          
+      # Deploy to the target directory.
+      - name: Deploy to gh pages
         uses: peaceiris/actions-gh-pages@068dc23d9710f1ba62e86896f84735d869951305 # v3.8.0
         with:
           github_token: ${{ secrets.GITHUB_TOKEN }}
           keep_files: true
           publish_dir: ./book
-          destination_dir: ./develop
+          destination_dir: ./${{ steps.vars.outputs.branch-version }}

.github/workflows/release-artifacts.yml

@@ -0,0 +1,95 @@
+# GitHub actions workflow which builds the release artifacts.
+
+name: Build release artifacts
+
+on:
+  # we build on PRs and develop to (hopefully) get early warning
+  # of things breaking (but only build one set of debs)
+  pull_request:
+  push:
+    branches: ["develop"]
+
+    # we do the full build on tags.
+    tags: ["v*"]
+
+permissions:
+  contents: write
+
+jobs:
+  get-distros:
+    name: "Calculate list of debian distros"
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions/setup-python@v2
+      - id: set-distros
+        run: |
+          # if we're running from a tag, get the full list of distros; otherwise just use debian:sid
+          dists='["debian:sid"]'
+          if [[ $GITHUB_REF == refs/tags/* ]]; then
+              dists=$(scripts-dev/build_debian_packages --show-dists-json)
+          fi
+          echo "::set-output name=distros::$dists"
+    # map the step outputs to job outputs
+    outputs:
+      distros: ${{ steps.set-distros.outputs.distros }}
+
+  # now build the packages with a matrix build.
+  build-debs:
+    needs: get-distros
+    name: "Build .deb packages"
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        distro: ${{ fromJson(needs.get-distros.outputs.distros) }}
+
+    steps:
+      - uses: actions/checkout@v2
+        with:
+          path: src
+      - uses: actions/setup-python@v2
+      - run: ./src/scripts-dev/build_debian_packages "${{ matrix.distro }}"
+      - uses: actions/upload-artifact@v2
+        with:
+          name: debs
+          path: debs/*
+
+  build-sdist:
+    name: "Build pypi distribution files"
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions/setup-python@v2
+      - run: pip install wheel
+      - run: |
+          python setup.py sdist bdist_wheel
+      - uses: actions/upload-artifact@v2
+        with:
+          name: python-dist
+          path: dist/*
+
+  # if it's a tag, create a release and attach the artifacts to it
+  attach-assets:
+    name: "Attach assets to release"
+    if: ${{ !failure() && !cancelled() && startsWith(github.ref, 'refs/tags/') }}
+    needs:
+      - build-debs
+      - build-sdist
+    runs-on: ubuntu-latest
+    steps:
+      - name: Download all workflow run artifacts
+        uses: actions/download-artifact@v2
+      - name: Build a tarball for the debs
+        run: tar -cvJf debs.tar.xz debs
+      - name: Attach to release
+        uses: softprops/action-gh-release@a929a66f232c1b11af63782948aa2210f981808a  # PR#109
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          files: |
+            python-dist/*
+            debs.tar.xz
+          # if it's not already published, keep the release as a draft.
+          draft: true
+          # mark it as a prerelease if the tag contains 'rc'.
+          prerelease: ${{ contains(github.ref, 'rc') }}

.github/workflows/tests.yml

@@ -65,14 +65,14 @@ jobs:
 
   # Dummy step to gate other tests on without repeating the whole list
   linting-done:
-    if: ${{ always() }} # Run this even if prior jobs were skipped
+    if: ${{ !cancelled() }} # Run this even if prior jobs were skipped
     needs: [lint, lint-crlf, lint-newsfile, lint-sdist]
     runs-on: ubuntu-latest
     steps:
       - run: "true"
 
   trial:
-    if: ${{ !failure() }} # Allow previous steps to be skipped, but not fail
+    if: ${{ !cancelled() && !failure() }} # Allow previous steps to be skipped, but not fail
     needs: linting-done
     runs-on: ubuntu-latest
     strategy:
@@ -131,7 +131,7 @@ jobs:
           || true
 
   trial-olddeps:
-    if: ${{ !failure() }} # Allow previous steps to be skipped, but not fail
+    if: ${{ !cancelled() && !failure() }} # Allow previous steps to be skipped, but not fail
     needs: linting-done
     runs-on: ubuntu-latest
     steps:
@@ -156,7 +156,7 @@ jobs:
 
   trial-pypy:
     # Very slow; only run if the branch name includes 'pypy'
-    if: ${{ contains(github.ref, 'pypy') && !failure() }}
+    if: ${{ contains(github.ref, 'pypy') && !failure() && !cancelled() }}
     needs: linting-done
     runs-on: ubuntu-latest
     strategy:
@@ -185,7 +185,7 @@ jobs:
           || true
 
   sytest:
-    if: ${{ !failure() }}
+    if: ${{ !failure() && !cancelled() }}
     needs: linting-done
     runs-on: ubuntu-latest
     container:
@@ -245,7 +245,7 @@ jobs:
             /logs/**/*.log*
 
   portdb:
-    if: ${{ !failure() }} # Allow previous steps to be skipped, but not fail
+    if: ${{ !failure() && !cancelled() }} # Allow previous steps to be skipped, but not fail
     needs: linting-done
     runs-on: ubuntu-latest
     strategy:
@@ -286,7 +286,7 @@ jobs:
       - run: .buildkite/scripts/test_synapse_port_db.sh
 
   complement:
-    if: ${{ !failure() }}
+    if: ${{ !failure() && !cancelled() }}
     needs: linting-done
     runs-on: ubuntu-latest
     container:
@@ -305,11 +305,29 @@ jobs:
         with:
           path: synapse
 
-      - name: Run actions/checkout@v2 for complement
-        uses: actions/checkout@v2
-        with:
-          repository: "matrix-org/complement"
-          path: complement
+      # Attempt to check out the same branch of Complement as the PR. If it
+      # doesn't exist, fallback to master.
+      - name: Checkout complement
+        shell: bash
+        run: |
+          mkdir -p complement
+          # Attempt to use the version of complement which best matches the current
+          # build. Depending on whether this is a PR or release, etc. we need to
+          # use different fallbacks.
+          #
+          # 1. First check if there's a similarly named branch (GITHUB_HEAD_REF
+          #    for pull requests, otherwise GITHUB_REF).
+          # 2. Attempt to use the base branch, e.g. when merging into release-vX.Y
+          #    (GITHUB_BASE_REF for pull requests).
+          # 3. Use the default complement branch ("master").
+          for BRANCH_NAME in "$GITHUB_HEAD_REF" "$GITHUB_BASE_REF" "${GITHUB_REF#refs/heads/}" "master"; do
+            # Skip empty branch names and merge commits.
+            if [[ -z "$BRANCH_NAME" || $BRANCH_NAME =~ ^refs/pull/.* ]]; then
+              continue
+            fi
+
+            (wget -O - "https://github.com/matrix-org/complement/archive/$BRANCH_NAME.tar.gz" | tar -xz --strip-components=1 -C complement) && break
+          done
 
       # Build initial Synapse image
       - run: docker build -t matrixdotorg/synapse:latest -f docker/Dockerfile .
@@ -322,7 +340,7 @@ jobs:
         working-directory: complement/dockerfiles
 
       # Run Complement
-      - run: go test -v -tags synapse_blacklist ./tests
+      - run: go test -v -tags synapse_blacklist,msc2403,msc2946,msc3083 ./tests
         env:
           COMPLEMENT_BASE_IMAGE: complement-synapse:latest
         working-directory: complement

CHANGES.md

@@ -1,3 +1,175 @@
+Synapse 1.38.0 (2021-07-13)
+===========================
+
+This release includes a database schema update which could result in elevated disk usage. See the [upgrade notes](https://matrix-org.github.io/synapse/develop/upgrade#upgrading-to-v1380) for more information.
+
+No significant changes since 1.38.0rc3.
+
+
+Synapse 1.38.0rc3 (2021-07-13)
+==============================
+
+Internal Changes
+----------------
+
+- Build the Debian packages in CI. ([\#10247](https://github.com/matrix-org/synapse/issues/10247), [\#10379](https://github.com/matrix-org/synapse/issues/10379))
+
+
+Synapse 1.38.0rc2 (2021-07-09)
+==============================
+
+Bugfixes
+--------
+
+- Fix bug where inbound federation in a room could be delayed due to not correctly dropping a lock. Introduced in v1.37.1. ([\#10336](https://github.com/matrix-org/synapse/issues/10336))
+
+
+Improved Documentation
+----------------------
+
+- Update links to documentation in the sample config. Contributed by @dklimpel. ([\#10287](https://github.com/matrix-org/synapse/issues/10287))
+- Fix broken links in [INSTALL.md](INSTALL.md). Contributed by @dklimpel. ([\#10331](https://github.com/matrix-org/synapse/issues/10331))
+
+
+Synapse 1.38.0rc1 (2021-07-06)
+==============================
+
+Features
+--------
+
+- Implement refresh tokens as specified by [MSC2918](https://github.com/matrix-org/matrix-doc/pull/2918). ([\#9450](https://github.com/matrix-org/synapse/issues/9450))
+- Add support for evicting cache entries based on last access time. ([\#10205](https://github.com/matrix-org/synapse/issues/10205))
+- Omit empty fields from the `/sync` response. Contributed by @deepbluev7. ([\#10214](https://github.com/matrix-org/synapse/issues/10214))
+- Improve validation on federation `send_{join,leave,knock}` endpoints. ([\#10225](https://github.com/matrix-org/synapse/issues/10225), [\#10243](https://github.com/matrix-org/synapse/issues/10243))
+- Add SSO `external_ids` to the Query User Account admin API. ([\#10261](https://github.com/matrix-org/synapse/issues/10261))
+- Mark events received over federation which fail a spam check as "soft-failed". ([\#10263](https://github.com/matrix-org/synapse/issues/10263))
+- Add metrics for new inbound federation staging area. ([\#10284](https://github.com/matrix-org/synapse/issues/10284))
+- Add script to print information about recently registered users. ([\#10290](https://github.com/matrix-org/synapse/issues/10290))
+
+
+Bugfixes
+--------
+
+- Fix a long-standing bug which meant that invite rejections and knocks were not sent out over federation in a timely manner. ([\#10223](https://github.com/matrix-org/synapse/issues/10223))
+- Fix a bug introduced in v1.26.0 where only users who have set profile information could be deactivated with erasure enabled. ([\#10252](https://github.com/matrix-org/synapse/issues/10252))
+- Fix a long-standing bug where Synapse would return errors after 2<sup>31</sup> events were handled by the server. ([\#10264](https://github.com/matrix-org/synapse/issues/10264), [\#10267](https://github.com/matrix-org/synapse/issues/10267), [\#10282](https://github.com/matrix-org/synapse/issues/10282), [\#10286](https://github.com/matrix-org/synapse/issues/10286), [\#10291](https://github.com/matrix-org/synapse/issues/10291), [\#10314](https://github.com/matrix-org/synapse/issues/10314), [\#10326](https://github.com/matrix-org/synapse/issues/10326))
+- Fix the prometheus `synapse_federation_server_pdu_process_time` metric. Broke in v1.37.1. ([\#10279](https://github.com/matrix-org/synapse/issues/10279))
+- Ensure that inbound events from federation that were being processed when Synapse was restarted get promptly processed on start up. ([\#10303](https://github.com/matrix-org/synapse/issues/10303))
+
+
+Improved Documentation
+----------------------
+
+- Move the upgrade notes to [docs/upgrade.md](https://github.com/matrix-org/synapse/blob/develop/docs/upgrade.md) and convert them to markdown. ([\#10166](https://github.com/matrix-org/synapse/issues/10166))
+- Choose Welcome & Overview as the default page for synapse documentation website. ([\#10242](https://github.com/matrix-org/synapse/issues/10242))
+- Adjust the URL in the README.rst file to point to irc.libera.chat. ([\#10258](https://github.com/matrix-org/synapse/issues/10258))
+- Fix homeserver config option name in presence router documentation. ([\#10288](https://github.com/matrix-org/synapse/issues/10288))
+- Fix link pointing at the wrong section in the modules documentation page. ([\#10302](https://github.com/matrix-org/synapse/issues/10302))
+
+
+Internal Changes
+----------------
+
+- Drop `Origin` and `Accept` from the value of the `Access-Control-Allow-Headers` response header. ([\#10114](https://github.com/matrix-org/synapse/issues/10114))
+- Add type hints to the federation servlets. ([\#10213](https://github.com/matrix-org/synapse/issues/10213))
+- Improve the reliability of auto-joining remote rooms. ([\#10237](https://github.com/matrix-org/synapse/issues/10237))
+- Update the release script to use the semver terminology and determine the release branch based on the next version. ([\#10239](https://github.com/matrix-org/synapse/issues/10239))
+- Fix type hints for computing auth events. ([\#10253](https://github.com/matrix-org/synapse/issues/10253))
+- Improve the performance of the spaces summary endpoint by only recursing into spaces (and not rooms in general). ([\#10256](https://github.com/matrix-org/synapse/issues/10256))
+- Move event authentication methods from `Auth` to `EventAuthHandler`. ([\#10268](https://github.com/matrix-org/synapse/issues/10268))
+- Re-enable a SyTest after it has been fixed. ([\#10292](https://github.com/matrix-org/synapse/issues/10292))
+
+
+Synapse 1.37.1 (2021-06-30)
+===========================
+
+This release resolves issues (such as [#9490](https://github.com/matrix-org/synapse/issues/9490)) where one busy room could cause head-of-line blocking, starving Synapse from processing events in other rooms, and causing all federated traffic to fall behind. Synapse 1.37.1 processes inbound federation traffic asynchronously, ensuring that one busy room won't impact others. Please upgrade to Synapse 1.37.1 as soon as possible, in order to increase resilience to other traffic spikes.
+
+No significant changes since v1.37.1rc1.
+
+
+Synapse 1.37.1rc1 (2021-06-29)
+==============================
+
+Features
+--------
+
+- Handle inbound events from federation asynchronously. ([\#10269](https://github.com/matrix-org/synapse/issues/10269), [\#10272](https://github.com/matrix-org/synapse/issues/10272))
+
+
+Synapse 1.37.0 (2021-06-29)
+===========================
+
+This release deprecates the current spam checker interface. See the [upgrade notes](https://matrix-org.github.io/synapse/develop/upgrade#deprecation-of-the-current-spam-checker-interface) for more information on how to update to the new generic module interface.
+
+This release also removes support for fetching and renewing TLS certificates using the ACME v1 protocol, which has been fully decommissioned by Let's Encrypt on June 1st 2021. Admins previously using this feature should use a [reverse proxy](https://matrix-org.github.io/synapse/develop/reverse_proxy.html) to handle TLS termination, or use an external ACME client (such as [certbot](https://certbot.eff.org/)) to retrieve a certificate and key and provide them to Synapse using the `tls_certificate_path` and `tls_private_key_path` configuration settings.
+
+Synapse 1.37.0rc1 (2021-06-24)
+==============================
+
+Features
+--------
+
+- Implement "room knocking" as per [MSC2403](https://github.com/matrix-org/matrix-doc/pull/2403). Contributed by @Sorunome and anoa. ([\#6739](https://github.com/matrix-org/synapse/issues/6739), [\#9359](https://github.com/matrix-org/synapse/issues/9359), [\#10167](https://github.com/matrix-org/synapse/issues/10167), [\#10212](https://github.com/matrix-org/synapse/issues/10212), [\#10227](https://github.com/matrix-org/synapse/issues/10227))
+- Add experimental support for backfilling history into rooms ([MSC2716](https://github.com/matrix-org/matrix-doc/pull/2716)). ([\#9247](https://github.com/matrix-org/synapse/issues/9247))
+- Implement a generic interface for third-party plugin modules. ([\#10062](https://github.com/matrix-org/synapse/issues/10062), [\#10206](https://github.com/matrix-org/synapse/issues/10206))
+- Implement config option `sso.update_profile_information` to sync SSO users' profile information with the identity provider each time they login. Currently only displayname is supported. ([\#10108](https://github.com/matrix-org/synapse/issues/10108))
+- Ensure that errors during startup are written to the logs and the console. ([\#10191](https://github.com/matrix-org/synapse/issues/10191))
+
+
+Bugfixes
+--------
+
+- Fix a bug introduced in Synapse v1.25.0 that prevented the `ip_range_whitelist` configuration option from working for federation and identity servers. Contributed by @mikure. ([\#10115](https://github.com/matrix-org/synapse/issues/10115))
+- Remove a broken import line in Synapse's `admin_cmd` worker. Broke in Synapse v1.33.0. ([\#10154](https://github.com/matrix-org/synapse/issues/10154))
+- Fix a bug introduced in Synapse v1.21.0 which could cause `/sync` to return immediately with an empty response. ([\#10157](https://github.com/matrix-org/synapse/issues/10157), [\#10158](https://github.com/matrix-org/synapse/issues/10158))
+- Fix a minor bug in the response to `/_matrix/client/r0/user/{user}/openid/request_token` causing `expires_in` to be a float instead of an integer. Contributed by @lukaslihotzki. ([\#10175](https://github.com/matrix-org/synapse/issues/10175))
+- Always require users to re-authenticate for dangerous operations: deactivating an account, modifying an account password, and adding 3PIDs. ([\#10184](https://github.com/matrix-org/synapse/issues/10184))
+- Fix a bug introduced in Synpase v1.7.2 where remote server count metrics collection would be incorrectly delayed on startup. Found by @heftig. ([\#10195](https://github.com/matrix-org/synapse/issues/10195))
+- Fix a bug introduced in Synapse v1.35.1 where an `allow` key of a `m.room.join_rules` event could be applied for incorrect room versions and configurations. ([\#10208](https://github.com/matrix-org/synapse/issues/10208))
+- Fix performance regression in responding to user key requests over federation. Introduced in Synapse v1.34.0rc1. ([\#10221](https://github.com/matrix-org/synapse/issues/10221))
+
+
+Improved Documentation
+----------------------
+
+- Add a new guide to decoding request logs. ([\#8436](https://github.com/matrix-org/synapse/issues/8436))
+- Mention in the sample homeserver config that you may need to configure max upload size in your reverse proxy. Contributed by @aaronraimist. ([\#10122](https://github.com/matrix-org/synapse/issues/10122))
+- Fix broken links in documentation. ([\#10180](https://github.com/matrix-org/synapse/issues/10180))
+- Deploy a snapshot of the documentation website upon each new Synapse release. ([\#10198](https://github.com/matrix-org/synapse/issues/10198))
+
+
+Deprecations and Removals
+-------------------------
+
+- The current spam checker interface is deprecated in favour of a new generic modules system. See the [upgrade notes](https://matrix-org.github.io/synapse/develop/upgrade#deprecation-of-the-current-spam-checker-interface) for more information on how to update to the new system. ([\#10062](https://github.com/matrix-org/synapse/issues/10062), [\#10210](https://github.com/matrix-org/synapse/issues/10210), [\#10238](https://github.com/matrix-org/synapse/issues/10238))
+- Stop supporting the unstable spaces prefixes from MSC1772. ([\#10161](https://github.com/matrix-org/synapse/issues/10161))
+- Remove Synapse's support for automatically fetching and renewing certificates using the ACME v1 protocol. This protocol has been fully turned off by Let's Encrypt for existing installations on June 1st 2021. Admins previously using this feature should use a [reverse proxy](https://matrix-org.github.io/synapse/develop/reverse_proxy.html) to handle TLS termination, or use an external ACME client (such as [certbot](https://certbot.eff.org/)) to retrieve a certificate and key and provide them to Synapse using the `tls_certificate_path` and `tls_private_key_path` configuration settings. ([\#10194](https://github.com/matrix-org/synapse/issues/10194))
+
+
+Internal Changes
+----------------
+
+- Update the database schema versioning to support gradual migration away from legacy tables. ([\#9933](https://github.com/matrix-org/synapse/issues/9933))
+- Add type hints to the federation servlets. ([\#10080](https://github.com/matrix-org/synapse/issues/10080))
+- Improve OpenTracing for event persistence. ([\#10134](https://github.com/matrix-org/synapse/issues/10134), [\#10193](https://github.com/matrix-org/synapse/issues/10193))
+- Clean up the interface for injecting OpenTracing over HTTP. ([\#10143](https://github.com/matrix-org/synapse/issues/10143))
+- Limit the number of in-flight `/keys/query` requests from a single device. ([\#10144](https://github.com/matrix-org/synapse/issues/10144))
+- Refactor EventPersistenceQueue. ([\#10145](https://github.com/matrix-org/synapse/issues/10145))
+- Document `SYNAPSE_TEST_LOG_LEVEL` to see the logger output when running tests. ([\#10148](https://github.com/matrix-org/synapse/issues/10148))
+- Update the Complement build tags in GitHub Actions to test currently experimental features. ([\#10155](https://github.com/matrix-org/synapse/issues/10155))
+- Add a `synapse_federation_soft_failed_events_total` metric to track how often events are soft failed. ([\#10156](https://github.com/matrix-org/synapse/issues/10156))
+- Fetch the corresponding complement branch when performing CI. ([\#10160](https://github.com/matrix-org/synapse/issues/10160))
+- Add some developer documentation about boolean columns in database schemas. ([\#10164](https://github.com/matrix-org/synapse/issues/10164))
+- Add extra logging fields to better debug where events are being soft failed. ([\#10168](https://github.com/matrix-org/synapse/issues/10168))
+- Add debug logging for when we enter and exit `Measure` blocks. ([\#10183](https://github.com/matrix-org/synapse/issues/10183))
+- Improve comments in structured logging code. ([\#10188](https://github.com/matrix-org/synapse/issues/10188))
+- Update [MSC3083](https://github.com/matrix-org/matrix-doc/pull/3083) support with modifications from the MSC. ([\#10189](https://github.com/matrix-org/synapse/issues/10189))
+- Remove redundant DNS lookup limiter. ([\#10190](https://github.com/matrix-org/synapse/issues/10190))
+- Upgrade `black` linting tool to 21.6b0. ([\#10197](https://github.com/matrix-org/synapse/issues/10197))
+- Expose OpenTracing trace id in response headers. ([\#10199](https://github.com/matrix-org/synapse/issues/10199))
+
+
 Synapse 1.36.0 (2021-06-15)
 ===========================
 
@@ -685,7 +857,7 @@ Internal Changes
 Synapse 1.29.0 (2021-03-08)
 ===========================
 
-Note that synapse now expects an `X-Forwarded-Proto` header when used with a reverse proxy. Please see [UPGRADE.rst](UPGRADE.rst#upgrading-to-v1290) for more details on this change.
+Note that synapse now expects an `X-Forwarded-Proto` header when used with a reverse proxy. Please see the [upgrade notes](docs/upgrade.md#upgrading-to-v1290) for more details on this change.
 
 
 No significant changes.
@@ -750,7 +922,7 @@ Synapse 1.28.0 (2021-02-25)
 
 Note that this release drops support for ARMv7 in the official Docker images, due to repeated problems building for ARMv7 (and the associated maintenance burden this entails).
 
-This release also fixes the documentation included in v1.27.0 around the callback URI for SAML2 identity providers. If your server is configured to use single sign-on via a SAML2 IdP, you may need to make configuration changes. Please review [UPGRADE.rst](UPGRADE.rst) for more details on these changes.
+This release also fixes the documentation included in v1.27.0 around the callback URI for SAML2 identity providers. If your server is configured to use single sign-on via a SAML2 IdP, you may need to make configuration changes. Please review the [upgrade notes](docs/upgrade.md) for more details on these changes.
 
 
 Internal Changes
@@ -849,9 +1021,9 @@ Synapse 1.27.0 (2021-02-16)
 
 Note that this release includes a change in Synapse to use Redis as a cache ─ as well as a pub/sub mechanism ─ if Redis support is enabled for workers. No action is needed by server administrators, and we do not expect resource usage of the Redis instance to change dramatically.
 
-This release also changes the callback URI for OpenID Connect (OIDC) and SAML2 identity providers. If your server is configured to use single sign-on via an OIDC/OAuth2 or SAML2 IdP, you may need to make configuration changes. Please review [UPGRADE.rst](UPGRADE.rst) for more details on these changes.
+This release also changes the callback URI for OpenID Connect (OIDC) and SAML2 identity providers. If your server is configured to use single sign-on via an OIDC/OAuth2 or SAML2 IdP, you may need to make configuration changes. Please review the [upgrade notes](docs/upgrade.md) for more details on these changes.
 
-This release also changes escaping of variables in the HTML templates for SSO or email notifications. If you have customised these templates, please review [UPGRADE.rst](UPGRADE.rst) for more details on these changes.
+This release also changes escaping of variables in the HTML templates for SSO or email notifications. If you have customised these templates, please review the [upgrade notes](docs/upgrade.md) for more details on these changes.
 
 
 Bugfixes
@@ -955,7 +1127,7 @@ Synapse 1.26.0 (2021-01-27)
 ===========================
 
 This release brings a new schema version for Synapse and rolling back to a previous
-version is not trivial. Please review [UPGRADE.rst](UPGRADE.rst) for more details
+version is not trivial. Please review the [upgrade notes](docs/upgrade.md) for more details
 on these changes and for general upgrade guidance.
 
 No significant changes since 1.26.0rc2.
@@ -982,7 +1154,7 @@ Synapse 1.26.0rc1 (2021-01-20)
 ==============================
 
 This release brings a new schema version for Synapse and rolling back to a previous
-version is not trivial. Please review [UPGRADE.rst](UPGRADE.rst) for more details
+version is not trivial. Please review the [upgrade notes](docs/upgrade.md) for more details
 on these changes and for general upgrade guidance.
 
 Features
@@ -1085,7 +1257,10 @@ Crucially, this means __we will not produce .deb packages for Debian 9 (Stretch)
 
 The website https://endoflife.date/ has convenient summaries of the support schedules for projects like [Python](https://endoflife.date/python) and [PostgreSQL](https://endoflife.date/postgresql).
 
-If you are unable to upgrade your environment to a supported version of Python or Postgres, we encourage you to consider using the [Synapse Docker images](./INSTALL.md#docker-images-and-ansible-playbooks) instead.
+If you are unable to upgrade your environment to a supported version of Python or
+Postgres, we encourage you to consider using the
+[Synapse Docker images](https://matrix-org.github.io/synapse/latest/setup/installation.html#docker-images-and-ansible-playbooks)
+instead.
 
 ### Transition Period
 
@@ -1228,11 +1403,11 @@ To upgrade Synapse along with the cryptography package:
 * Administrators using the [`matrix.org` Docker
   image](https://hub.docker.com/r/matrixdotorg/synapse/) or the [Debian/Ubuntu
   packages from
-  `matrix.org`](https://github.com/matrix-org/synapse/blob/master/INSTALL.md#matrixorg-packages)
+  `matrix.org`](https://matrix-org.github.io/synapse/latest/setup/installation.html#matrixorg-packages)
   should ensure that they have version 1.24.0 or 1.23.1 installed: these images include
   the updated packages.
 * Administrators who have [installed Synapse from
-  source](https://github.com/matrix-org/synapse/blob/master/INSTALL.md#installing-from-source)
+  source](https://matrix-org.github.io/synapse/latest/setup/installation.html#installing-from-source)
   should upgrade the cryptography package within their virtualenv by running:
   ```sh
   <path_to_virtualenv>/bin/pip install 'cryptography>=3.3'
@@ -1274,11 +1449,11 @@ To upgrade Synapse along with the cryptography package:
 * Administrators using the [`matrix.org` Docker
   image](https://hub.docker.com/r/matrixdotorg/synapse/) or the [Debian/Ubuntu
   packages from
-  `matrix.org`](https://github.com/matrix-org/synapse/blob/master/INSTALL.md#matrixorg-packages)
+  `matrix.org`](https://matrix-org.github.io/synapse/latest/setup/installation.html#matrixorg-packages)
   should ensure that they have version 1.24.0 or 1.23.1 installed: these images include
   the updated packages.
 * Administrators who have [installed Synapse from
-  source](https://github.com/matrix-org/synapse/blob/master/INSTALL.md#installing-from-source)
+  source](https://matrix-org.github.io/synapse/latest/setup/installation.html#installing-from-source)
   should upgrade the cryptography package within their virtualenv by running:
   ```sh
   <path_to_virtualenv>/bin/pip install 'cryptography>=3.3'
@@ -1388,7 +1563,7 @@ Internal Changes
 Synapse 1.23.0 (2020-11-18)
 ===========================
 
-This release changes the way structured logging is configured. See the [upgrade notes](UPGRADE.rst#upgrading-to-v1230) for details.
+This release changes the way structured logging is configured. See the [upgrade notes](docs/upgrade.md#upgrading-to-v1230) for details.
 
 **Note**: We are aware of a trivially exploitable denial of service vulnerability in versions of Synapse prior to 1.20.0. Complete details will be disclosed on Monday, November 23rd. If you have not upgraded recently, please do so.
 
@@ -1991,7 +2166,10 @@ No significant changes since 1.19.0rc1.
 Removal warning
 ---------------
 
-As outlined in the [previous release](https://github.com/matrix-org/synapse/releases/tag/v1.18.0), we are no longer publishing Docker images with the `-py3` tag suffix. On top of that, we have also removed the `latest-py3` tag. Please see [the announcement in the upgrade notes for 1.18.0](https://github.com/matrix-org/synapse/blob/develop/UPGRADE.rst#upgrading-to-v1180).
+As outlined in the [previous release](https://github.com/matrix-org/synapse/releases/tag/v1.18.0),
+we are no longer publishing Docker images with the `-py3` tag suffix. On top of that, we have also removed the
+`latest-py3` tag. Please see
+[the announcement in the upgrade notes for 1.18.0](https://github.com/matrix-org/synapse/blob/develop/docs/upgrade.md#upgrading-to-v1180).
 
 
 Synapse 1.19.0rc1 (2020-08-13)
@@ -2022,7 +2200,7 @@ Bugfixes
 Updates to the Docker image
 ---------------------------
 
-- We no longer publish Docker images with the `-py3` tag suffix, as [announced in the upgrade notes](https://github.com/matrix-org/synapse/blob/develop/UPGRADE.rst#upgrading-to-v1180). ([\#8056](https://github.com/matrix-org/synapse/issues/8056))
+- We no longer publish Docker images with the `-py3` tag suffix, as [announced in the upgrade notes](https://github.com/matrix-org/synapse/blob/develop/docs/upgrade.md#upgrading-to-v1180). ([\#8056](https://github.com/matrix-org/synapse/issues/8056))
 
 
 Improved Documentation
@@ -2580,7 +2758,7 @@ configurations of Synapse:
   to be incomplete or empty if Synapse was upgraded directly from v1.2.1 or
   earlier, to versions between v1.4.0 and v1.12.x.
 
-Please review [UPGRADE.rst](UPGRADE.rst) for more details on these changes
+Please review the [upgrade notes](docs/upgrade.md) for more details on these changes
 and for general upgrade guidance.
 
 
@@ -2681,7 +2859,7 @@ Bugfixes
 - Fix bad error handling that would cause Synapse to crash if it's provided with a YAML configuration file that's either empty or doesn't parse into a key-value map. ([\#7341](https://github.com/matrix-org/synapse/issues/7341))
 - Fix incorrect metrics reporting for `renew_attestations` background task. ([\#7344](https://github.com/matrix-org/synapse/issues/7344))
 - Prevent non-federating rooms from appearing in responses to federated `POST /publicRoom` requests when a filter was included. ([\#7367](https://github.com/matrix-org/synapse/issues/7367))
-- Fix a bug which would cause the room durectory to be incorrectly populated if Synapse was upgraded directly from v1.2.1 or earlier to v1.4.0 or later. Note that this fix does not apply retrospectively; see the [upgrade notes](UPGRADE.rst#upgrading-to-v1130) for more information. ([\#7387](https://github.com/matrix-org/synapse/issues/7387))
+- Fix a bug which would cause the room durectory to be incorrectly populated if Synapse was upgraded directly from v1.2.1 or earlier to v1.4.0 or later. Note that this fix does not apply retrospectively; see the [upgrade notes](docs/upgrade.md#upgrading-to-v1130) for more information. ([\#7387](https://github.com/matrix-org/synapse/issues/7387))
 - Fix bug in `EventContext.deserialize`. ([\#7393](https://github.com/matrix-org/synapse/issues/7393))
 
 
@@ -2831,7 +3009,7 @@ Synapse 1.12.0 includes a database update which is run as part of the upgrade,
 and which may take some time (several hours in the case of a large
 server). Synapse will not respond to HTTP requests while this update is taking
 place. For imformation on seeing if you are affected, and workaround if you
-are, see the [upgrade notes](UPGRADE.rst#upgrading-to-v1120).
+are, see the [upgrade notes](docs/upgrade.md#upgrading-to-v1120).
 
 Security advisory
 -----------------
@@ -2854,11 +3032,11 @@ installation remains secure.
 * Administrators using the [`matrix.org` Docker
   image](https://hub.docker.com/r/matrixdotorg/synapse/) or the [Debian/Ubuntu
   packages from
-  `matrix.org`](https://github.com/matrix-org/synapse/blob/master/INSTALL.md#matrixorg-packages)
+  `matrix.org`](https://matrix-org.github.io/synapse/latest/setup/installation.html#matrixorg-packages)
   should ensure that they have version 1.12.0 installed: these images include
   Twisted 20.3.0.
 * Administrators who have [installed Synapse from
-  source](https://github.com/matrix-org/synapse/blob/master/INSTALL.md#installing-from-source)
+  source](https://matrix-org.github.io/synapse/latest/setup/installation.html#installing-from-source)
   should upgrade Twisted within their virtualenv by running:
   ```sh
   <path_to_virtualenv>/bin/pip install 'Twisted>=20.3.0'
@@ -3384,7 +3562,7 @@ Bugfixes
 Synapse 1.7.0 (2019-12-13)
 ==========================
 
-This release changes the default settings so that only local authenticated users can query the server's room directory. See the [upgrade notes](UPGRADE.rst#upgrading-to-v170) for details.
+This release changes the default settings so that only local authenticated users can query the server's room directory. See the [upgrade notes](docs/upgrade.md#upgrading-to-v170) for details.
 
 Support for SQLite versions before 3.11 is now deprecated. A future release will refuse to start if used with an SQLite version before 3.11.
 
@@ -3748,7 +3926,7 @@ Synapse 1.4.0rc1 (2019-09-26)
 =============================
 
 Note that this release includes significant changes around 3pid
-verification. Administrators are reminded to review the [upgrade notes](UPGRADE.rst#upgrading-to-v140).
+verification. Administrators are reminded to review the [upgrade notes](docs/upgrade.md#upgrading-to-v140).
 
 Features
 --------
@@ -4124,7 +4302,7 @@ Synapse 1.1.0 (2019-07-04)
 ==========================
 
 As of v1.1.0, Synapse no longer supports Python 2, nor Postgres version 9.4.
-See the [upgrade notes](UPGRADE.rst#upgrading-to-v110) for more details.
+See the [upgrade notes](docs/upgrade.md#upgrading-to-v110) for more details.
 
 This release also deprecates the use of environment variables to configure the
 docker image. See the [docker README](https://github.com/matrix-org/synapse/blob/release-v1.1.0/docker/README.md#legacy-dynamic-configuration-file-support)
@@ -4154,7 +4332,7 @@ Synapse 1.1.0rc1 (2019-07-02)
 =============================
 
 As of v1.1.0, Synapse no longer supports Python 2, nor Postgres version 9.4.
-See the [upgrade notes](UPGRADE.rst#upgrading-to-v110) for more details.
+See the [upgrade notes](docs/upgrade.md#upgrading-to-v110) for more details.
 
 Features
 --------
@@ -4926,7 +5104,7 @@ run on Python versions 3.5 or 3.6 (as well as 2.7). Support for Python 3.7
 remains experimental.
 
 We recommend upgrading to Python 3, but make sure to read the [upgrade
-notes](UPGRADE.rst#upgrading-to-v0340) when doing so.
+notes](docs/upgrade.md#upgrading-to-v0340) when doing so.
 
 Features
 --------

CONTRIBUTING.md

@@ -173,12 +173,19 @@ source ./env/bin/activate
 trial tests.rest.admin.test_room tests.handlers.test_admin.ExfiltrateData.test_invite
 ```
 
-If your tests fail, you may wish to look at the logs:
+If your tests fail, you may wish to look at the logs (the default log level is `ERROR`):
 
 ```sh
 less _trial_temp/test.log
 ```
 
+To increase the log level for the tests, set `SYNAPSE_TEST_LOG_LEVEL`:
+
+```sh
+SYNAPSE_TEST_LOG_LEVEL=DEBUG trial tests
+```
+
+
 ## Run the integration tests.
 
 The integration tests are a more comprehensive suite of tests. They

INSTALL.md

@@ -1,596 +1,7 @@
 # Installation Instructions
 
-There are 3 steps to follow under **Installation Instructions**.
+This document has moved to the
+[Synapse documentation website](https://matrix-org.github.io/synapse/latest/setup/installation.html).
+Please update your links.
 
-- [Installation Instructions](#installation-instructions)
-  - [Choosing your server name](#choosing-your-server-name)
-  - [Installing Synapse](#installing-synapse)
-    - [Installing from source](#installing-from-source)
-      - [Platform-specific prerequisites](#platform-specific-prerequisites)
-        - [Debian/Ubuntu/Raspbian](#debianubunturaspbian)
-        - [ArchLinux](#archlinux)
-        - [CentOS/Fedora](#centosfedora)
-        - [macOS](#macos)
-        - [OpenSUSE](#opensuse)
-        - [OpenBSD](#openbsd)
-        - [Windows](#windows)
-    - [Prebuilt packages](#prebuilt-packages)
-      - [Docker images and Ansible playbooks](#docker-images-and-ansible-playbooks)
-      - [Debian/Ubuntu](#debianubuntu)
-        - [Matrix.org packages](#matrixorg-packages)
-        - [Downstream Debian packages](#downstream-debian-packages)
-        - [Downstream Ubuntu packages](#downstream-ubuntu-packages)
-      - [Fedora](#fedora)
-      - [OpenSUSE](#opensuse-1)
-      - [SUSE Linux Enterprise Server](#suse-linux-enterprise-server)
-      - [ArchLinux](#archlinux-1)
-      - [Void Linux](#void-linux)
-      - [FreeBSD](#freebsd)
-      - [OpenBSD](#openbsd-1)
-      - [NixOS](#nixos)
-  - [Setting up Synapse](#setting-up-synapse)
-    - [Using PostgreSQL](#using-postgresql)
-    - [TLS certificates](#tls-certificates)
-    - [Client Well-Known URI](#client-well-known-uri)
-    - [Email](#email)
-    - [Registering a user](#registering-a-user)
-    - [Setting up a TURN server](#setting-up-a-turn-server)
-    - [URL previews](#url-previews)
-    - [Troubleshooting Installation](#troubleshooting-installation)
-
-
-## Choosing your server name
-
-It is important to choose the name for your server before you install Synapse,
-because it cannot be changed later.
-
-The server name determines the "domain" part of user-ids for users on your
-server: these will all be of the format `@user:my.domain.name`. It also
-determines how other matrix servers will reach yours for federation.
-
-For a test configuration, set this to the hostname of your server. For a more
-production-ready setup, you will probably want to specify your domain
-(`example.com`) rather than a matrix-specific hostname here (in the same way
-that your email address is probably `user@example.com` rather than
-`user@email.example.com`) - but doing so may require more advanced setup: see
-[Setting up Federation](docs/federate.md).
-
-## Installing Synapse
-
-### Installing from source
-
-(Prebuilt packages are available for some platforms - see [Prebuilt packages](#prebuilt-packages).)
-
-When installing from source please make sure that the [Platform-specific prerequisites](#platform-specific-prerequisites) are already installed.
-
-System requirements:
-
-- POSIX-compliant system (tested on Linux & OS X)
-- Python 3.5.2 or later, up to Python 3.9.
-- At least 1GB of free RAM if you want to join large public rooms like #matrix:matrix.org
-
-
-To install the Synapse homeserver run:
-
-```sh
-mkdir -p ~/synapse
-virtualenv -p python3 ~/synapse/env
-source ~/synapse/env/bin/activate
-pip install --upgrade pip
-pip install --upgrade setuptools
-pip install matrix-synapse
-```
-
-This will download Synapse from [PyPI](https://pypi.org/project/matrix-synapse)
-and install it, along with the python libraries it uses, into a virtual environment
-under `~/synapse/env`.  Feel free to pick a different directory if you
-prefer.
-
-This Synapse installation can then be later upgraded by using pip again with the
-update flag:
-
-```sh
-source ~/synapse/env/bin/activate
-pip install -U matrix-synapse
-```
-
-Before you can start Synapse, you will need to generate a configuration
-file. To do this, run (in your virtualenv, as before):
-
-```sh
-cd ~/synapse
-python -m synapse.app.homeserver \
-    --server-name my.domain.name \
-    --config-path homeserver.yaml \
-    --generate-config \
-    --report-stats=[yes|no]
-```
-
-... substituting an appropriate value for `--server-name`.
-
-This command will generate you a config file that you can then customise, but it will
-also generate a set of keys for you. These keys will allow your homeserver to
-identify itself to other homeserver, so don't lose or delete them. It would be
-wise to back them up somewhere safe. (If, for whatever reason, you do need to
-change your homeserver's keys, you may find that other homeserver have the
-old key cached. If you update the signing key, you should change the name of the
-key in the `<server name>.signing.key` file (the second word) to something
-different. See the [spec](https://matrix.org/docs/spec/server_server/latest.html#retrieving-server-keys) for more information on key management).
-
-To actually run your new homeserver, pick a working directory for Synapse to
-run (e.g. `~/synapse`), and:
-
-```sh
-cd ~/synapse
-source env/bin/activate
-synctl start
-```
-
-#### Platform-specific prerequisites
-
-Synapse is written in Python but some of the libraries it uses are written in
-C. So before we can install Synapse itself we need a working C compiler and the
-header files for Python C extensions.
-
-##### Debian/Ubuntu/Raspbian
-
-Installing prerequisites on Ubuntu or Debian:
-
-```sh
-sudo apt install build-essential python3-dev libffi-dev \
-                     python3-pip python3-setuptools sqlite3 \
-                     libssl-dev virtualenv libjpeg-dev libxslt1-dev
-```
-
-##### ArchLinux
-
-Installing prerequisites on ArchLinux:
-
-```sh
-sudo pacman -S base-devel python python-pip \
-               python-setuptools python-virtualenv sqlite3
-```
-
-##### CentOS/Fedora
-
-Installing prerequisites on CentOS or Fedora Linux:
-
-```sh
-sudo dnf install libtiff-devel libjpeg-devel libzip-devel freetype-devel \
-                 libwebp-devel libxml2-devel libxslt-devel libpq-devel \
-                 python3-virtualenv libffi-devel openssl-devel python3-devel
-sudo dnf groupinstall "Development Tools"
-```
-
-##### macOS
-
-Installing prerequisites on macOS:
-
-```sh
-xcode-select --install
-sudo easy_install pip
-sudo pip install virtualenv
-brew install pkg-config libffi
-```
-
-On macOS Catalina (10.15) you may need to explicitly install OpenSSL
-via brew and inform `pip` about it so that `psycopg2` builds:
-
-```sh
-brew install openssl@1.1
-export LDFLAGS="-L/usr/local/opt/openssl/lib"
-export CPPFLAGS="-I/usr/local/opt/openssl/include"
-```
-
-##### OpenSUSE
-
-Installing prerequisites on openSUSE:
-
-```sh
-sudo zypper in -t pattern devel_basis
-sudo zypper in python-pip python-setuptools sqlite3 python-virtualenv \
-               python-devel libffi-devel libopenssl-devel libjpeg62-devel
-```
-
-##### OpenBSD
-
-A port of Synapse is available under `net/synapse`. The filesystem
-underlying the homeserver directory (defaults to `/var/synapse`) has to be
-mounted with `wxallowed` (cf. `mount(8)`), so creating a separate filesystem
-and mounting it to `/var/synapse` should be taken into consideration.
-
-To be able to build Synapse's dependency on python the `WRKOBJDIR`
-(cf. `bsd.port.mk(5)`) for building python, too, needs to be on a filesystem
-mounted with `wxallowed` (cf. `mount(8)`).
-
-Creating a `WRKOBJDIR` for building python under `/usr/local` (which on a
-default OpenBSD installation is mounted with `wxallowed`):
-
-```sh
-doas mkdir /usr/local/pobj_wxallowed
-```
-
-Assuming `PORTS_PRIVSEP=Yes` (cf. `bsd.port.mk(5)`) and `SUDO=doas` are
-configured in `/etc/mk.conf`:
-
-```sh
-doas chown _pbuild:_pbuild /usr/local/pobj_wxallowed
-```
-
-Setting the `WRKOBJDIR` for building python:
-
-```sh
-echo WRKOBJDIR_lang/python/3.7=/usr/local/pobj_wxallowed  \\nWRKOBJDIR_lang/python/2.7=/usr/local/pobj_wxallowed >> /etc/mk.conf
-```
-
-Building Synapse:
-
-```sh
-cd /usr/ports/net/synapse
-make install
-```
-
-##### Windows
-
-If you wish to run or develop Synapse on Windows, the Windows Subsystem For
-Linux provides a Linux environment on Windows 10 which is capable of using the
-Debian, Fedora, or source installation methods. More information about WSL can
-be found at <https://docs.microsoft.com/en-us/windows/wsl/install-win10> for
-Windows 10 and <https://docs.microsoft.com/en-us/windows/wsl/install-on-server>
-for Windows Server.
-
-### Prebuilt packages
-
-As an alternative to installing from source, prebuilt packages are available
-for a number of platforms.
-
-#### Docker images and Ansible playbooks
-
-There is an official synapse image available at
-<https://hub.docker.com/r/matrixdotorg/synapse> which can be used with
-the docker-compose file available at [contrib/docker](contrib/docker). Further
-information on this including configuration options is available in the README
-on hub.docker.com.
-
-Alternatively, Andreas Peters (previously Silvio Fricke) has contributed a
-Dockerfile to automate a synapse server in a single Docker image, at
-<https://hub.docker.com/r/avhost/docker-matrix/tags/>
-
-Slavi Pantaleev has created an Ansible playbook,
-which installs the offical Docker image of Matrix Synapse
-along with many other Matrix-related services (Postgres database, Element, coturn,
-ma1sd, SSL support, etc.).
-For more details, see
-<https://github.com/spantaleev/matrix-docker-ansible-deploy>
-
-#### Debian/Ubuntu
-
-##### Matrix.org packages
-
-Matrix.org provides Debian/Ubuntu packages of the latest stable version of
-Synapse via <https://packages.matrix.org/debian/>. They are available for Debian
-9 (Stretch), Ubuntu 16.04 (Xenial), and later. To use them:
-
-```sh
-sudo apt install -y lsb-release wget apt-transport-https
-sudo wget -O /usr/share/keyrings/matrix-org-archive-keyring.gpg https://packages.matrix.org/debian/matrix-org-archive-keyring.gpg
-echo "deb [signed-by=/usr/share/keyrings/matrix-org-archive-keyring.gpg] https://packages.matrix.org/debian/ $(lsb_release -cs) main" |
-    sudo tee /etc/apt/sources.list.d/matrix-org.list
-sudo apt update
-sudo apt install matrix-synapse-py3
-```
-
-**Note**: if you followed a previous version of these instructions which
-recommended using `apt-key add` to add an old key from
-`https://matrix.org/packages/debian/`, you should note that this key has been
-revoked. You should remove the old key with `sudo apt-key remove
-C35EB17E1EAE708E6603A9B3AD0592FE47F0DF61`, and follow the above instructions to
-update your configuration.
-
-The fingerprint of the repository signing key (as shown by `gpg
-/usr/share/keyrings/matrix-org-archive-keyring.gpg`) is
-`AAF9AE843A7584B5A3E4CD2BCF45A512DE2DA058`.
-
-##### Downstream Debian packages
-
-We do not recommend using the packages from the default Debian `buster`
-repository at this time, as they are old and suffer from known security
-vulnerabilities. You can install the latest version of Synapse from
-[our repository](#matrixorg-packages) or from `buster-backports`. Please
-see the [Debian documentation](https://backports.debian.org/Instructions/)
-for information on how to use backports.
-
-If you are using Debian `sid` or testing, Synapse is available in the default
-repositories and it should be possible to install it simply with:
-
-```sh
-sudo apt install matrix-synapse
-```
-
-##### Downstream Ubuntu packages
-
-We do not recommend using the packages in the default Ubuntu repository
-at this time, as they are old and suffer from known security vulnerabilities.
-The latest version of Synapse can be installed from [our repository](#matrixorg-packages).
-
-#### Fedora
-
-Synapse is in the Fedora repositories as `matrix-synapse`:
-
-```sh
-sudo dnf install matrix-synapse
-```
-
-Oleg Girko provides Fedora RPMs at
-<https://obs.infoserver.lv/project/monitor/matrix-synapse>
-
-#### OpenSUSE
-
-Synapse is in the OpenSUSE repositories as `matrix-synapse`:
-
-```sh
-sudo zypper install matrix-synapse
-```
-
-#### SUSE Linux Enterprise Server
-
-Unofficial package are built for SLES 15 in the openSUSE:Backports:SLE-15 repository at
-<https://download.opensuse.org/repositories/openSUSE:/Backports:/SLE-15/standard/>
-
-#### ArchLinux
-
-The quickest way to get up and running with ArchLinux is probably with the community package
-<https://www.archlinux.org/packages/community/any/matrix-synapse/>, which should pull in most of
-the necessary dependencies.
-
-pip may be outdated (6.0.7-1 and needs to be upgraded to 6.0.8-1 ):
-
-```sh
-sudo pip install --upgrade pip
-```
-
-If you encounter an error with lib bcrypt causing an Wrong ELF Class:
-ELFCLASS32 (x64 Systems), you may need to reinstall py-bcrypt to correctly
-compile it under the right architecture. (This should not be needed if
-installing under virtualenv):
-
-```sh
-sudo pip uninstall py-bcrypt
-sudo pip install py-bcrypt
-```
-
-#### Void Linux
-
-Synapse can be found in the void repositories as 'synapse':
-
-```sh
-xbps-install -Su
-xbps-install -S synapse
-```
-
-#### FreeBSD
-
-Synapse can be installed via FreeBSD Ports or Packages contributed by Brendan Molloy from:
-
-- Ports: `cd /usr/ports/net-im/py-matrix-synapse && make install clean`
-- Packages: `pkg install py37-matrix-synapse`
-
-#### OpenBSD
-
-As of OpenBSD 6.7 Synapse is available as a pre-compiled binary. The filesystem
-underlying the homeserver directory (defaults to `/var/synapse`) has to be
-mounted with `wxallowed` (cf. `mount(8)`), so creating a separate filesystem
-and mounting it to `/var/synapse` should be taken into consideration.
-
-Installing Synapse:
-
-```sh
-doas pkg_add synapse
-```
-
-#### NixOS
-
-Robin Lambertz has packaged Synapse for NixOS at:
-<https://github.com/NixOS/nixpkgs/blob/master/nixos/modules/services/misc/matrix-synapse.nix>
-
-## Setting up Synapse
-
-Once you have installed synapse as above, you will need to configure it.
-
-### Using PostgreSQL
-
-By default Synapse uses an [SQLite](https://sqlite.org/) database and in doing so trades
-performance for convenience. Almost all installations should opt to use [PostgreSQL](https://www.postgresql.org)
-instead. Advantages include:
-
-- significant performance improvements due to the superior threading and
-  caching model, smarter query optimiser
-- allowing the DB to be run on separate hardware
-
-For information on how to install and use PostgreSQL in Synapse, please see
-[docs/postgres.md](docs/postgres.md)
-
-SQLite is only acceptable for testing purposes. SQLite should not be used in
-a production server. Synapse will perform poorly when using
-SQLite, especially when participating in large rooms.
-
-### TLS certificates
-
-The default configuration exposes a single HTTP port on the local
-interface: `http://localhost:8008`. It is suitable for local testing,
-but for any practical use, you will need Synapse's APIs to be served
-over HTTPS.
-
-The recommended way to do so is to set up a reverse proxy on port
-`8448`. You can find documentation on doing so in
-[docs/reverse_proxy.md](docs/reverse_proxy.md).
-
-Alternatively, you can configure Synapse to expose an HTTPS port. To do
-so, you will need to edit `homeserver.yaml`, as follows:
-
-- First, under the `listeners` section, uncomment the configuration for the
-  TLS-enabled listener. (Remove the hash sign (`#`) at the start of
-  each line). The relevant lines are like this:
-
-```yaml
-  - port: 8448
-    type: http
-    tls: true
-    resources:
-      - names: [client, federation]
-  ```
-
-- You will also need to uncomment the `tls_certificate_path` and
-  `tls_private_key_path` lines under the `TLS` section. You will need to manage
-  provisioning of these certificates yourself — Synapse had built-in ACME
-  support, but the ACMEv1 protocol Synapse implements is deprecated, not
-  allowed by LetsEncrypt for new sites, and will break for existing sites in
-  late 2020. See [ACME.md](docs/ACME.md).
-
-  If you are using your own certificate, be sure to use a `.pem` file that
-  includes the full certificate chain including any intermediate certificates
-  (for instance, if using certbot, use `fullchain.pem` as your certificate, not
-  `cert.pem`).
-
-For a more detailed guide to configuring your server for federation, see
-[federate.md](docs/federate.md).
-
-### Client Well-Known URI
-
-Setting up the client Well-Known URI is optional but if you set it up, it will
-allow users to enter their full username (e.g. `@user:<server_name>`) into clients
-which support well-known lookup to automatically configure the homeserver and
-identity server URLs. This is useful so that users don't have to memorize or think
-about the actual homeserver URL you are using.
-
-The URL `https://<server_name>/.well-known/matrix/client` should return JSON in
-the following format.
-
-```json
-{
-  "m.homeserver": {
-    "base_url": "https://<matrix.example.com>"
-  }
-}
-```
-
-It can optionally contain identity server information as well.
-
-```json
-{
-  "m.homeserver": {
-    "base_url": "https://<matrix.example.com>"
-  },
-  "m.identity_server": {
-    "base_url": "https://<identity.example.com>"
-  }
-}
-```
-
-To work in browser based clients, the file must be served with the appropriate
-Cross-Origin Resource Sharing (CORS) headers. A recommended value would be
-`Access-Control-Allow-Origin: *` which would allow all browser based clients to
-view it.
-
-In nginx this would be something like:
-
-```nginx
-location /.well-known/matrix/client {
-    return 200 '{"m.homeserver": {"base_url": "https://<matrix.example.com>"}}';
-    default_type application/json;
-    add_header Access-Control-Allow-Origin *;
-}
-```
-
-You should also ensure the `public_baseurl` option in `homeserver.yaml` is set
-correctly. `public_baseurl` should be set to the URL that clients will use to
-connect to your server. This is the same URL you put for the `m.homeserver`
-`base_url` above.
-
-```yaml
-public_baseurl: "https://<matrix.example.com>"
-```
-
-### Email
-
-It is desirable for Synapse to have the capability to send email. This allows
-Synapse to send password reset emails, send verifications when an email address
-is added to a user's account, and send email notifications to users when they
-receive new messages.
-
-To configure an SMTP server for Synapse, modify the configuration section
-headed `email`, and be sure to have at least the `smtp_host`, `smtp_port`
-and `notif_from` fields filled out.  You may also need to set `smtp_user`,
-`smtp_pass`, and `require_transport_security`.
-
-If email is not configured, password reset, registration and notifications via
-email will be disabled.
-
-### Registering a user
-
-The easiest way to create a new user is to do so from a client like [Element](https://element.io/).
-
-Alternatively, you can do so from the command line. This can be done as follows:
-
- 1. If synapse was installed via pip, activate the virtualenv as follows (if Synapse was
-    installed via a prebuilt package, `register_new_matrix_user` should already be
-    on the search path):
-    ```sh
-    cd ~/synapse
-    source env/bin/activate
-    synctl start # if not already running
-    ```
- 2. Run the following command:
-    ```sh
-    register_new_matrix_user -c homeserver.yaml http://localhost:8008
-    ```
-
-This will prompt you to add details for the new user, and will then connect to
-the running Synapse to create the new user. For example:
-```
-New user localpart: erikj
-Password:
-Confirm password:
-Make admin [no]:
-Success!
-```
-
-This process uses a setting `registration_shared_secret` in
-`homeserver.yaml`, which is shared between Synapse itself and the
-`register_new_matrix_user` script. It doesn't matter what it is (a random
-value is generated by `--generate-config`), but it should be kept secret, as
-anyone with knowledge of it can register users, including admin accounts,
-on your server even if `enable_registration` is `false`.
-
-### Setting up a TURN server
-
-For reliable VoIP calls to be routed via this homeserver, you MUST configure
-a TURN server. See [docs/turn-howto.md](docs/turn-howto.md) for details.
-
-### URL previews
-
-Synapse includes support for previewing URLs, which is disabled by default.  To
-turn it on you must enable the `url_preview_enabled: True` config parameter
-and explicitly specify the IP ranges that Synapse is not allowed to spider for
-previewing in the `url_preview_ip_range_blacklist` configuration parameter.
-This is critical from a security perspective to stop arbitrary Matrix users
-spidering 'internal' URLs on your network. At the very least we recommend that
-your loopback and RFC1918 IP addresses are blacklisted.
-
-This also requires the optional `lxml` python dependency to be  installed. This
-in turn requires the `libxml2` library to be available - on  Debian/Ubuntu this
-means `apt-get install libxml2-dev`, or equivalent for your OS.
-
-### Troubleshooting Installation
-
-`pip` seems to leak *lots* of memory during installation. For instance, a Linux
-host with 512MB of RAM may run out of memory whilst installing Twisted. If this
-happens, you will have to individually install the dependencies which are
-failing, e.g.:
-
-```sh
-pip install twisted
-```
-
-If you have any other problems, feel free to ask in
-[#synapse:matrix.org](https://matrix.to/#/#synapse:matrix.org).
+The markdown source is available in [docs/setup/installation.md](docs/setup/installation.md).

README.rst

@@ -25,7 +25,7 @@ The overall architecture is::
 
 ``#matrix:matrix.org`` is the official support room for Matrix, and can be
 accessed by any client from https://matrix.org/docs/projects/try-matrix-now.html or
-via IRC bridge at irc://irc.freenode.net/matrix.
+via IRC bridge at irc://irc.libera.chat/matrix.
 
 Synapse is currently in rapid development, but as of version 0.5 we believe it
 is sufficiently stable to be run as an internet-facing service for real usage!
@@ -94,7 +94,8 @@ Synapse Installation
 
 .. _federation:
 
-* For details on how to install synapse, see `<INSTALL.md>`_.
+* For details on how to install synapse, see
+  `Installation Instructions <https://matrix-org.github.io/synapse/latest/setup/installation.html>`_.
 * For specific details on how to configure Synapse for federation see `docs/federate.md <docs/federate.md>`_
 
 
@@ -106,7 +107,8 @@ from a web client.
 
 Unless you are running a test instance of Synapse on your local machine, in
 general, you will need to enable TLS support before you can successfully
-connect from a client: see `<INSTALL.md#tls-certificates>`_.
+connect from a client: see
+`TLS certificates <https://matrix-org.github.io/synapse/latest/setup/installation.html#tls-certificates>`_.
 
 An easy way to get started is to login or register via Element at
 https://app.element.io/#/login or https://app.element.io/#/register respectively.
@@ -142,13 +144,6 @@ the form of::
 As when logging in, you will need to specify a "Custom server".  Specify your
 desired ``localpart`` in the 'User name' box.
 
-ACME setup
-==========
-
-For details on having Synapse manage your federation TLS certificates
-automatically, please see `<docs/ACME.md>`_.
-
-
 Security note
 =============
 
@@ -193,11 +188,11 @@ impact to other applications will be minimal.
 Upgrading an existing Synapse
 =============================
 
-The instructions for upgrading synapse are in `UPGRADE.rst`_.
+The instructions for upgrading synapse are in `the upgrade notes`_.
 Please check these instructions as upgrading may require extra steps for some
 versions of synapse.
 
-.. _UPGRADE.rst: UPGRADE.rst
+.. _the upgrade notes: https://matrix-org.github.io/synapse/develop/upgrade.html
 
 .. _reverse-proxy:
 
@@ -272,7 +267,7 @@ Join our developer community on Matrix: `#synapse-dev:matrix.org <https://matrix
 
 Before setting up a development environment for synapse, make sure you have the
 system dependencies (such as the python header files) installed - see
-`Installing from source <INSTALL.md#installing-from-source>`_.
+`Installing from source <https://matrix-org.github.io/synapse/latest/setup/installation.html#installing-from-source>`_.
 
 To check out a synapse for development, clone the git repo into a working
 directory of your choice::
@@ -293,18 +288,6 @@ try installing the failing modules individually::
 
     pip install -e "module-name"
 
-Once this is done, you may wish to run Synapse's unit tests to
-check that everything is installed correctly::
-
-    python -m twisted.trial tests
-
-This should end with a 'PASSED' result (note that exact numbers will
-differ)::
-
-    Ran 1337 tests in 716.064s
-
-    PASSED (skips=15, successes=1322)
-
 We recommend using the demo which starts 3 federated instances running on ports `8080` - `8082`
 
     ./demo/start.sh
@@ -324,6 +307,23 @@ If you just want to start a single instance of the app and run it directly::
     python -m synapse.app.homeserver --config-path homeserver.yaml
 
 
+Running the unit tests
+======================
+
+After getting up and running, you may wish to run Synapse's unit tests to
+check that everything is installed correctly::
+
+    trial tests
+
+This should end with a 'PASSED' result (note that exact numbers will
+differ)::
+
+    Ran 1337 tests in 716.064s
+
+    PASSED (skips=15, successes=1322)
+
+For more tips on running the unit tests, like running a specific test or
+to see the logging output, see the `CONTRIBUTING doc <CONTRIBUTING.md#run-the-unit-tests>`_.
 
 
 Running the Integration Tests
@@ -335,8 +335,8 @@ access the API as a Matrix client would. It is able to run Synapse directly from
 the source tree, so installation of the server is not required.
 
 Testing with SyTest is recommended for verifying that changes related to the
-Client-Server API are functioning correctly. See the `installation instructions
-<https://github.com/matrix-org/sytest#installing>`_ for details.
+Client-Server API are functioning correctly. See the `SyTest installation
+instructions <https://github.com/matrix-org/sytest#installing>`_ for details.
 
 
 Platform dependencies

changelog.d/10250.bugfix

@@ -0,0 +1 @@
+Add base starting insertion event when no chunk ID is specified in the historical batch send API.

changelog.d/10276.bugfix

@@ -0,0 +1 @@
+Fix historical batch send endpoint (MSC2716) rejecting batches with messages from multiple senders.

changelog.d/10289.misc

@@ -0,0 +1 @@
+Convert `room_depth.min_depth` column to a `BIGINT`.

changelog.d/10298.feature

@@ -0,0 +1 @@
+The spaces summary API now returns any joinable rooms, not only rooms which are world-readable.

changelog.d/10305.feature

@@ -0,0 +1 @@
+The spaces summary API now returns any joinable rooms, not only rooms which are world-readable.

changelog.d/10313.doc

@@ -0,0 +1 @@
+Simplify structure of room admin API.

changelog.d/10315.misc

@@ -0,0 +1 @@
+Add tests to characterise the current behaviour of R30 phone-home metrics.

changelog.d/10316.misc

@@ -0,0 +1 @@
+Rebuild event context and auth when processing specific results from `ThirdPartyEventRules` modules.

changelog.d/10317.bugfix

@@ -0,0 +1 @@
+Fix purging rooms that other homeservers are still sending events for. Contributed by @ilmari.

changelog.d/10322.doc

@@ -0,0 +1 @@
+Fix a broken link in the admin api docs.

changelog.d/10324.misc

@@ -0,0 +1 @@
+Minor change to the code that populates `user_daily_visits`.

changelog.d/10337.doc

@@ -0,0 +1 @@
+Fix formatting in the logcontext documentation.

changelog.d/10343.bugfix

@@ -0,0 +1 @@
+Fix errors during backfill caused by previously purged redaction events. Contributed by Andreas Rammhold (@andir).

changelog.d/10344.bugfix

@@ -0,0 +1 @@
+Fix the user directory becoming broken (and noisy errors being logged) when knocking and room statistics are in use.

changelog.d/10345.misc

@@ -0,0 +1 @@
+Re-enable Sytests that were disabled for the 1.37.1 release.

changelog.d/10347.misc

@@ -0,0 +1 @@
+Run `pyupgrade` on the codebase.

changelog.d/10349.misc

@@ -0,0 +1 @@
+Switch `application_services_txns.txn_id` database column to `BIGINT`.

changelog.d/10350.misc

@@ -0,0 +1 @@
+Convert internal type variable syntax to reflect wider ecosystem use.

changelog.d/10353.doc

@@ -0,0 +1 @@
+Refresh the logcontext dev documentation.

changelog.d/10355.bugfix

@@ -0,0 +1 @@
+Fix newly added `synapse_federation_server_oldest_inbound_pdu_in_staging` prometheus metric to measure age rather than timestamp.

changelog.d/10357.misc

@@ -0,0 +1 @@
+Re-enable Sytests that were disabled for the 1.37.1 release.

changelog.d/10359.bugfix

@@ -0,0 +1 @@
+Fix PostgreSQL sometimes using table scans for queries against `state_groups_state` table, taking a long time and a large amount of IO.

changelog.d/10360.feature

@@ -0,0 +1 @@
+Allow providing credentials to `http_proxy`.

changelog.d/10367.bugfix

@@ -0,0 +1 @@
+Bugfix `make_room_admin` fails for users that have left a private room.

changelog.d/10368.doc

@@ -0,0 +1 @@
+Add delegation example for caddy in the reverse proxy documentation. Contributed by @moritzdietz.

changelog.d/10370.doc

@@ -0,0 +1 @@
+Fix some links in `docs` and `contrib`.

changelog.d/10380.misc

@@ -0,0 +1 @@
+Convert internal type variable syntax to reflect wider ecosystem use.

changelog.d/10381.misc

@@ -0,0 +1 @@
+Convert internal type variable syntax to reflect wider ecosystem use.

changelog.d/10383.misc

@@ -0,0 +1 @@
+Make the Github Actions workflow configuration more efficient.

changelog.d/10385.misc

@@ -0,0 +1 @@
+Add type hints to `get_{domain,localpart}_from_id`.

changelog.d/10391.misc

@@ -0,0 +1 @@
+When building Debian packages for prerelease versions, set the Section accordingly.

changelog.d/10393.misc

@@ -0,0 +1 @@
+Add type hints and comments to event auth code.

changelog.d/10395.doc

@@ -0,0 +1 @@
+Make deprecation notice of the spam checker doc more obvious.

changelog.d/10396.doc

@@ -0,0 +1 @@
+Add instructructions on installing Debian packages for release candidates.

changelog.d/10398.misc

@@ -0,0 +1 @@
+Stagger sending of presence update to remote servers, reducing CPU spikes caused by starting many connections to remote servers at once.

changelog.d/10399.doc

@@ -0,0 +1 @@
+Rewrite the text of links to be clearer in the documentation.

changelog.d/10400.bugfix

@@ -0,0 +1 @@
+Fix a number of logged errors caused by remote servers being down.

changelog.d/9721.removal

@@ -0,0 +1 @@
+Remove functionality associated with the unused `room_stats_historical` and `user_stats_historical` tables. Contributed by @xmunoz.

changelog.d/9971.doc

@@ -0,0 +1 @@
+Updated installation dependencies for newer macOS versions and ARM Macs. Contributed by Luke Walsh.

contrib/docker/docker-compose.yml

@@ -56,7 +56,7 @@ services:
       - POSTGRES_USER=synapse
       - POSTGRES_PASSWORD=changeme
       # ensure the database gets created correctly
-      # https://github.com/matrix-org/synapse/blob/master/docs/postgres.md#set-up-database
+      # https://matrix-org.github.io/synapse/latest/postgres.html#set-up-database
       - POSTGRES_INITDB_ARGS=--encoding=UTF-8 --lc-collate=C --lc-ctype=C
     volumes:
       # You may store the database tables in a local folder..

contrib/experiments/cursesio.py

@@ -46,14 +46,14 @@ class CursesStdIO:
         self.callback = callback
 
     def fileno(self):
-        """ We want to select on FD 0 """
+        """We want to select on FD 0"""
         return 0
 
     def connectionLost(self, reason):
         self.close()
 
     def print_line(self, text):
-        """ add a line to the internal list of lines"""
+        """add a line to the internal list of lines"""
 
         self.lines.append(text)
         self.redraw()
@@ -92,7 +92,7 @@ class CursesStdIO:
         )
 
     def doRead(self):
-        """ Input is ready! """
+        """Input is ready!"""
         curses.noecho()
         c = self.stdscr.getch()  # read a character
 
@@ -132,7 +132,7 @@ class CursesStdIO:
         return "CursesStdIO"
 
     def close(self):
-        """ clean up """
+        """clean up"""
 
         curses.nocbreak()
         self.stdscr.keypad(0)

contrib/grafana/README.md

@@ -1,6 +1,6 @@
 # Using the Synapse Grafana dashboard
 
 0. Set up Prometheus and Grafana. Out of scope for this readme. Useful documentation about using Grafana with Prometheus: http://docs.grafana.org/features/datasources/prometheus/
-1. Have your Prometheus scrape your Synapse. https://github.com/matrix-org/synapse/blob/master/docs/metrics-howto.md
+1. Have your Prometheus scrape your Synapse. https://matrix-org.github.io/synapse/latest/metrics-howto.html
 2. Import dashboard into Grafana. Download `synapse.json`. Import it to Grafana and select the correct Prometheus datasource. http://docs.grafana.org/reference/export_import/
-3. Set up required recording rules. https://github.com/matrix-org/synapse/tree/master/contrib/prometheus
+3. Set up required recording rules. [contrib/prometheus](../prometheus)

contrib/prometheus/README.md

@@ -34,7 +34,7 @@ Add a new job to the main prometheus.yml file:
 ```
 
 An example of a Prometheus configuration with workers can be found in
-[metrics-howto.md](https://github.com/matrix-org/synapse/blob/master/docs/metrics-howto.md).
+[metrics-howto.md](https://matrix-org.github.io/synapse/latest/metrics-howto.html).
 
 To use `synapse.rules` add
 

contrib/purge_api/README.md

@@ -3,8 +3,9 @@ Purge history API examples
 
 # `purge_history.sh`
 
-A bash file, that uses the [purge history API](/docs/admin_api/purge_history_api.rst) to 
-purge all messages in a list of rooms up to a certain event. You can select a 
+A bash file, that uses the
+[purge history API](https://matrix-org.github.io/synapse/latest/admin_api/purge_history_api.html)
+to purge all messages in a list of rooms up to a certain event. You can select a 
 timeframe or a number of messages that you want to keep in the room.
 
 Just configure the variables DOMAIN, ADMIN, ROOMS_ARRAY and TIME at the top of
@@ -12,5 +13,6 @@ the script.
 
 # `purge_remote_media.sh`
 
-A bash file, that uses the [purge history API](/docs/admin_api/purge_history_api.rst) to 
-purge all old cached remote media.
+A bash file, that uses the
+[purge history API](https://matrix-org.github.io/synapse/latest/admin_api/purge_history_api.html)
+to purge all old cached remote media.

contrib/purge_api/purge_history.sh

@@ -1,7 +1,7 @@
 #!/usr/bin/env bash
 
 # this script will use the api:
-#    https://github.com/matrix-org/synapse/blob/master/docs/admin_api/purge_history_api.rst
+#    https://matrix-org.github.io/synapse/latest/admin_api/purge_history_api.html
 # 
 # It will purge all messages in a list of rooms up to a cetrain event
 

contrib/systemd-with-workers/README.md

@@ -1,2 +1,3 @@
 The documentation for using systemd to manage synapse workers is now part of
-the main synapse distribution. See [docs/systemd-with-workers](../../docs/systemd-with-workers).
+the main synapse distribution. See
+[docs/systemd-with-workers](https://matrix-org.github.io/synapse/latest/systemd-with-workers/index.html).

contrib/systemd/README.md

@@ -2,7 +2,8 @@
 This is a setup for managing synapse with a user contributed systemd unit 
 file. It provides a `matrix-synapse` systemd unit file that should be tailored 
 to accommodate your installation in accordance with the installation 
-instructions provided in [installation instructions](../../INSTALL.md).
+instructions provided in
+[installation instructions](https://matrix-org.github.io/synapse/latest/setup/installation.html).
 
 ## Setup
 1. Under the service section, ensure the `User` variable matches which user

debian/changelog

@@ -1,3 +1,31 @@
+matrix-synapse-py3 (1.38.0) stable; urgency=medium
+
+  * New synapse release 1.38.0.
+
+ -- Synapse Packaging team <packages@matrix.org>  Tue, 13 Jul 2021 13:20:56 +0100
+
+matrix-synapse-py3 (1.38.0rc3) prerelease; urgency=medium
+
+  [ Erik Johnston ]
+  * Add synapse_review_recent_signups script
+
+  [ Synapse Packaging team ]
+  * New synapse release 1.38.0rc3.
+
+ -- Synapse Packaging team <packages@matrix.org>  Tue, 13 Jul 2021 11:53:56 +0100
+
+matrix-synapse-py3 (1.37.1) stable; urgency=medium
+
+  * New synapse release 1.37.1.
+
+ -- Synapse Packaging team <packages@matrix.org>  Wed, 30 Jun 2021 12:24:06 +0100
+
+matrix-synapse-py3 (1.37.0) stable; urgency=medium
+
+  * New synapse release 1.37.0.
+
+ -- Synapse Packaging team <packages@matrix.org>  Tue, 29 Jun 2021 10:15:25 +0100
+
 matrix-synapse-py3 (1.36.0) stable; urgency=medium
 
   * New synapse release 1.36.0.

debian/hash_password.1

@@ -1,90 +1,58 @@
-.\" generated with Ronn/v0.7.3
-.\" http://github.com/rtomayko/ronn/tree/0.7.3
-.
-.TH "HASH_PASSWORD" "1" "February 2017" "" ""
-.
+.\" generated with Ronn-NG/v0.8.0
+.\" http://github.com/apjanke/ronn-ng/tree/0.8.0
+.TH "HASH_PASSWORD" "1" "July 2021" "" ""
 .SH "NAME"
 \fBhash_password\fR \- Calculate the hash of a new password, so that passwords can be reset
-.
 .SH "SYNOPSIS"
 \fBhash_password\fR [\fB\-p\fR|\fB\-\-password\fR [password]] [\fB\-c\fR|\fB\-\-config\fR \fIfile\fR]
-.
 .SH "DESCRIPTION"
 \fBhash_password\fR calculates the hash of a supplied password using bcrypt\.
-.
 .P
 \fBhash_password\fR takes a password as an parameter either on the command line or the \fBSTDIN\fR if not supplied\.
-.
 .P
 It accepts an YAML file which can be used to specify parameters like the number of rounds for bcrypt and password_config section having the pepper value used for the hashing\. By default \fBbcrypt_rounds\fR is set to \fB10\fR\.
-.
 .P
 The hashed password is written on the \fBSTDOUT\fR\.
-.
 .SH "FILES"
 A sample YAML file accepted by \fBhash_password\fR is described below:
-.
 .P
 bcrypt_rounds: 17 password_config: pepper: "random hashing pepper"
-.
 .SH "OPTIONS"
-.
 .TP
 \fB\-p\fR, \fB\-\-password\fR
 Read the password form the command line if [password] is supplied\. If not, prompt the user and read the password form the \fBSTDIN\fR\. It is not recommended to type the password on the command line directly\. Use the STDIN instead\.
-.
 .TP
 \fB\-c\fR, \fB\-\-config\fR
 Read the supplied YAML \fIfile\fR containing the options \fBbcrypt_rounds\fR and the \fBpassword_config\fR section containing the \fBpepper\fR value\.
-.
 .SH "EXAMPLES"
 Hash from the command line:
-.
 .IP "" 4
-.
 .nf
-
 $ hash_password \-p "p@ssw0rd"
 $2b$12$VJNqWQYfsWTEwcELfoSi4Oa8eA17movHqqi8\.X8fWFpum7SxZ9MFe
-.
 .fi
-.
 .IP "" 0
-.
 .P
 Hash from the STDIN:
-.
 .IP "" 4
-.
 .nf
-
 $ hash_password
 Password:
 Confirm password:
 $2b$12$AszlvfmJl2esnyhmn8m/kuR2tdXgROWtWxnX\.rcuAbM8ErLoUhybG
-.
 .fi
-.
 .IP "" 0
-.
 .P
 Using a config file:
-.
 .IP "" 4
-.
 .nf
-
 $ hash_password \-c config\.yml
 Password:
 Confirm password:
 $2b$12$CwI\.wBNr\.w3kmiUlV3T5s\.GT2wH7uebDCovDrCOh18dFedlANK99O
-.
 .fi
-.
 .IP "" 0
-.
 .SH "COPYRIGHT"
-This man page was written by Rahul De <\fIrahulde@swecha\.net\fR> for Debian GNU/Linux distribution\.
-.
+This man page was written by Rahul De <\fI\%mailto:rahulde@swecha\.net\fR> for Debian GNU/Linux distribution\.
 .SH "SEE ALSO"
-synctl(1), synapse_port_db(1), register_new_matrix_user(1)
+synctl(1), synapse_port_db(1), register_new_matrix_user(1), synapse_review_recent_signups(1)

debian/hash_password.ronn

@@ -66,4 +66,4 @@ for Debian GNU/Linux distribution.
 
 ## SEE ALSO
 
-synctl(1), synapse_port_db(1), register_new_matrix_user(1)
+synctl(1), synapse_port_db(1), register_new_matrix_user(1), synapse_review_recent_signups(1)

debian/manpages

@@ -1,4 +1,5 @@
 debian/hash_password.1
 debian/register_new_matrix_user.1
 debian/synapse_port_db.1
+debian/synapse_review_recent_signups.1
 debian/synctl.1

debian/matrix-synapse-py3.links

@@ -1,4 +1,5 @@
 opt/venvs/matrix-synapse/bin/hash_password usr/bin/hash_password
 opt/venvs/matrix-synapse/bin/register_new_matrix_user usr/bin/register_new_matrix_user
 opt/venvs/matrix-synapse/bin/synapse_port_db usr/bin/synapse_port_db
+opt/venvs/matrix-synapse/bin/synapse_review_recent_signups usr/bin/synapse_review_recent_signups
 opt/venvs/matrix-synapse/bin/synctl usr/bin/synctl

debian/register_new_matrix_user.1

@@ -1,72 +1,47 @@
-.\" generated with Ronn/v0.7.3
-.\" http://github.com/rtomayko/ronn/tree/0.7.3
-.
-.TH "REGISTER_NEW_MATRIX_USER" "1" "February 2017" "" ""
-.
+.\" generated with Ronn-NG/v0.8.0
+.\" http://github.com/apjanke/ronn-ng/tree/0.8.0
+.TH "REGISTER_NEW_MATRIX_USER" "1" "July 2021" "" ""
 .SH "NAME"
 \fBregister_new_matrix_user\fR \- Used to register new users with a given home server when registration has been disabled
-.
 .SH "SYNOPSIS"
-\fBregister_new_matrix_user\fR options\.\.\.
-.
+\fBregister_new_matrix_user\fR options\|\.\|\.\|\.
 .SH "DESCRIPTION"
 \fBregister_new_matrix_user\fR registers new users with a given home server when registration has been disabled\. For this to work, the home server must be configured with the \'registration_shared_secret\' option set\.
-.
 .P
 This accepts the user credentials like the username, password, is user an admin or not and registers the user onto the homeserver database\. Also, a YAML file containing the shared secret can be provided\. If not, the shared secret can be provided via the command line\.
-.
 .P
 By default it assumes the home server URL to be \fBhttps://localhost:8448\fR\. This can be changed via the \fBserver_url\fR command line option\.
-.
 .SH "FILES"
 A sample YAML file accepted by \fBregister_new_matrix_user\fR is described below:
-.
 .IP "" 4
-.
 .nf
-
 registration_shared_secret: "s3cr3t"
-.
 .fi
-.
 .IP "" 0
-.
 .SH "OPTIONS"
-.
 .TP
 \fB\-u\fR, \fB\-\-user\fR
 Local part of the new user\. Will prompt if omitted\.
-.
 .TP
 \fB\-p\fR, \fB\-\-password\fR
 New password for user\. Will prompt if omitted\. Supplying the password on the command line is not recommended\. Use the STDIN instead\.
-.
 .TP
 \fB\-a\fR, \fB\-\-admin\fR
 Register new user as an admin\. Will prompt if omitted\.
-.
 .TP
 \fB\-c\fR, \fB\-\-config\fR
 Path to server config file containing the shared secret\.
-.
 .TP
 \fB\-k\fR, \fB\-\-shared\-secret\fR
 Shared secret as defined in server config file\. This is an optional parameter as it can be also supplied via the YAML file\.
-.
 .TP
 \fBserver_url\fR
 URL of the home server\. Defaults to \'https://localhost:8448\'\.
-.
 .SH "EXAMPLES"
-.
 .nf
-
 $ register_new_matrix_user \-u user1 \-p p@ssword \-a \-c config\.yaml
-.
 .fi
-.
 .SH "COPYRIGHT"
-This man page was written by Rahul De <\fIrahulde@swecha\.net\fR> for Debian GNU/Linux distribution\.
-.
+This man page was written by Rahul De <\fI\%mailto:rahulde@swecha\.net\fR> for Debian GNU/Linux distribution\.
 .SH "SEE ALSO"
-synctl(1), synapse_port_db(1), hash_password(1)
+synctl(1), synapse_port_db(1), hash_password(1), synapse_review_recent_signups(1)

debian/register_new_matrix_user.ronn

@@ -58,4 +58,4 @@ for Debian GNU/Linux distribution.
 
 ## SEE ALSO
 
-synctl(1), synapse_port_db(1), hash_password(1)
+synctl(1), synapse_port_db(1), hash_password(1), synapse_review_recent_signups(1)

debian/synapse_port_db.1

@@ -1,83 +1,56 @@
-.\" generated with Ronn/v0.7.3
-.\" http://github.com/rtomayko/ronn/tree/0.7.3
-.
-.TH "SYNAPSE_PORT_DB" "1" "February 2017" "" ""
-.
+.\" generated with Ronn-NG/v0.8.0
+.\" http://github.com/apjanke/ronn-ng/tree/0.8.0
+.TH "SYNAPSE_PORT_DB" "1" "July 2021" "" ""
 .SH "NAME"
 \fBsynapse_port_db\fR \- A script to port an existing synapse SQLite database to a new PostgreSQL database\.
-.
 .SH "SYNOPSIS"
 \fBsynapse_port_db\fR [\-v] \-\-sqlite\-database=\fIdbfile\fR \-\-postgres\-config=\fIyamlconfig\fR [\-\-curses] [\-\-batch\-size=\fIbatch\-size\fR]
-.
 .SH "DESCRIPTION"
 \fBsynapse_port_db\fR ports an existing synapse SQLite database to a new PostgreSQL database\.
-.
 .P
 SQLite database is specified with \fB\-\-sqlite\-database\fR option and PostgreSQL configuration required to connect to PostgreSQL database is provided using \fB\-\-postgres\-config\fR configuration\. The configuration is specified in YAML format\.
-.
 .SH "OPTIONS"
-.
 .TP
 \fB\-v\fR
 Print log messages in \fBdebug\fR level instead of \fBinfo\fR level\.
-.
 .TP
 \fB\-\-sqlite\-database\fR
 The snapshot of the SQLite database file\. This must not be currently used by a running synapse server\.
-.
 .TP
 \fB\-\-postgres\-config\fR
 The database config file for the PostgreSQL database\.
-.
 .TP
 \fB\-\-curses\fR
 Display a curses based progress UI\.
-.
 .SH "CONFIG FILE"
 The postgres configuration file must be a valid YAML file with the following options\.
-.
-.IP "\(bu" 4
+.IP "\[ci]" 4
 \fBdatabase\fR: Database configuration section\. This section header can be ignored and the options below may be specified as top level keys\.
-.
-.IP "\(bu" 4
+.IP "\[ci]" 4
 \fBname\fR: Connector to use when connecting to the database\. This value must be \fBpsycopg2\fR\.
-.
-.IP "\(bu" 4
+.IP "\[ci]" 4
 \fBargs\fR: DB API 2\.0 compatible arguments to send to the \fBpsycopg2\fR module\.
-.
-.IP "\(bu" 4
+.IP "\[ci]" 4
 \fBdbname\fR \- the database name
-.
-.IP "\(bu" 4
+.IP "\[ci]" 4
 \fBuser\fR \- user name used to authenticate
-.
-.IP "\(bu" 4
+.IP "\[ci]" 4
 \fBpassword\fR \- password used to authenticate
-.
-.IP "\(bu" 4
+.IP "\[ci]" 4
 \fBhost\fR \- database host address (defaults to UNIX socket if not provided)
-.
-.IP "\(bu" 4
+.IP "\[ci]" 4
 \fBport\fR \- connection port number (defaults to 5432 if not provided)
-.
 .IP "" 0
 
-.
-.IP "\(bu" 4
+.IP "\[ci]" 4
 \fBsynchronous_commit\fR: Optional\. Default is True\. If the value is \fBFalse\fR, enable asynchronous commit and don\'t wait for the server to call fsync before ending the transaction\. See: https://www\.postgresql\.org/docs/current/static/wal\-async\-commit\.html
-.
 .IP "" 0
 
-.
 .IP "" 0
-.
 .P
 Following example illustrates the configuration file format\.
-.
 .IP "" 4
-.
 .nf
-
 database:
   name: psycopg2
   args:
@@ -86,13 +59,9 @@ database:
     password: ORohmi9Eet=ohphi
     host: localhost
   synchronous_commit: false
-.
 .fi
-.
 .IP "" 0
-.
 .SH "COPYRIGHT"
-This man page was written by Sunil Mohan Adapa <\fIsunil@medhas\.org\fR> for Debian GNU/Linux distribution\.
-.
+This man page was written by Sunil Mohan Adapa <\fI\%mailto:sunil@medhas\.org\fR> for Debian GNU/Linux distribution\.
 .SH "SEE ALSO"
-synctl(1), hash_password(1), register_new_matrix_user(1)
+synctl(1), hash_password(1), register_new_matrix_user(1), synapse_review_recent_signups(1)

debian/synapse_port_db.ronn

@@ -47,7 +47,7 @@ following options.
     * `args`:
       DB API 2.0 compatible arguments to send to the `psycopg2` module.
 
-      * `dbname` - the database name 
+      * `dbname` - the database name
 
       * `user` - user name used to authenticate
 
@@ -58,7 +58,7 @@ following options.
 
       * `port` - connection port number (defaults to 5432 if not
         provided)
-      
+
 
     * `synchronous_commit`:
       Optional.  Default is True.  If the value is `False`, enable
@@ -76,7 +76,7 @@ Following example illustrates the configuration file format.
         password: ORohmi9Eet=ohphi
         host: localhost
       synchronous_commit: false
-  
+
 ## COPYRIGHT
 
 This man page was written by Sunil Mohan Adapa <<sunil@medhas.org>> for
@@ -84,4 +84,4 @@ Debian GNU/Linux distribution.
 
 ## SEE ALSO
 
-synctl(1), hash_password(1), register_new_matrix_user(1)
+synctl(1), hash_password(1), register_new_matrix_user(1), synapse_review_recent_signups(1)

debian/synapse_review_recent_signups.1

@@ -0,0 +1,26 @@
+.\" generated with Ronn-NG/v0.8.0
+.\" http://github.com/apjanke/ronn-ng/tree/0.8.0
+.TH "SYNAPSE_REVIEW_RECENT_SIGNUPS" "1" "July 2021" "" ""
+.SH "NAME"
+\fBsynapse_review_recent_signups\fR \- Print users that have recently registered on Synapse
+.SH "SYNOPSIS"
+\fBsynapse_review_recent_signups\fR \fB\-c\fR|\fB\-\-config\fR \fIfile\fR [\fB\-s\fR|\fB\-\-since\fR \fIperiod\fR] [\fB\-e\fR|\fB\-\-exclude\-emails\fR] [\fB\-u\fR|\fB\-\-only\-users\fR]
+.SH "DESCRIPTION"
+\fBsynapse_review_recent_signups\fR prints out recently registered users on a Synapse server, as well as some basic information about the user\.
+.P
+\fBsynapse_review_recent_signups\fR must be supplied with the config of the Synapse server, so that it can fetch the database config and connect to the database\.
+.SH "OPTIONS"
+.TP
+\fB\-c\fR, \fB\-\-config\fR
+The config file(s) used by the Synapse server\.
+.TP
+\fB\-s\fR, \fB\-\-since\fR
+How far back to search for newly registered users\. Defaults to 7d, i\.e\. up to seven days in the past\. Valid units are \'s\', \'m\', \'h\', \'d\', \'w\', or \'y\'\.
+.TP
+\fB\-e\fR, \fB\-\-exclude\-emails\fR
+Do not print out users that have validated emails associated with their account\.
+.TP
+\fB\-u\fR, \fB\-\-only\-users\fR
+Only print out the user IDs of recently registered users, without any additional information
+.SH "SEE ALSO"
+synctl(1), synapse_port_db(1), register_new_matrix_user(1), hash_password(1)

debian/synapse_review_recent_signups.ronn

@@ -0,0 +1,37 @@
+synapse_review_recent_signups(1) -- Print users that have recently registered on Synapse
+========================================================================================
+
+## SYNOPSIS
+
+`synapse_review_recent_signups` `-c`|`--config` <file> [`-s`|`--since` <period>] [`-e`|`--exclude-emails`] [`-u`|`--only-users`]
+
+## DESCRIPTION
+
+**synapse_review_recent_signups** prints out recently registered users on a
+Synapse server, as well as some basic information about the user.
+
+`synapse_review_recent_signups` must be supplied with the config of the Synapse
+server, so that it can fetch the database config and connect to the database.
+
+
+## OPTIONS
+
+  * `-c`, `--config`:
+    The config file(s) used by the Synapse server.
+
+  * `-s`, `--since`:
+    How far back to search for newly registered users. Defaults to 7d, i.e. up
+    to seven days in the past. Valid units are 's', 'm', 'h', 'd', 'w', or 'y'.
+
+  * `-e`, `--exclude-emails`:
+    Do not print out users that have validated emails associated with their
+    account.
+
+  * `-u`, `--only-users`:
+    Only print out the user IDs of recently registered users, without any
+    additional information
+
+
+## SEE ALSO
+
+synctl(1), synapse_port_db(1), register_new_matrix_user(1), hash_password(1)

debian/synctl.1

@@ -1,63 +1,41 @@
-.\" generated with Ronn/v0.7.3
-.\" http://github.com/rtomayko/ronn/tree/0.7.3
-.
-.TH "SYNCTL" "1" "February 2017" "" ""
-.
+.\" generated with Ronn-NG/v0.8.0
+.\" http://github.com/apjanke/ronn-ng/tree/0.8.0
+.TH "SYNCTL" "1" "July 2021" "" ""
 .SH "NAME"
 \fBsynctl\fR \- Synapse server control interface
-.
 .SH "SYNOPSIS"
 Start, stop or restart synapse server\.
-.
 .P
 \fBsynctl\fR {start|stop|restart} [configfile] [\-w|\-\-worker=\fIWORKERCONFIG\fR] [\-a|\-\-all\-processes=\fIWORKERCONFIGDIR\fR]
-.
 .SH "DESCRIPTION"
 \fBsynctl\fR can be used to start, stop or restart Synapse server\. The control operation can be done on all processes or a single worker process\.
-.
 .SH "OPTIONS"
-.
 .TP
 \fBaction\fR
 The value of action should be one of \fBstart\fR, \fBstop\fR or \fBrestart\fR\.
-.
 .TP
 \fBconfigfile\fR
 Optional path of the configuration file to use\. Default value is \fBhomeserver\.yaml\fR\. The configuration file must exist for the operation to succeed\.
-.
 .TP
 \fB\-w\fR, \fB\-\-worker\fR:
-.
-.IP
-Perform start, stop or restart operations on a single worker\. Incompatible with \fB\-a\fR|\fB\-\-all\-processes\fR\. Value passed must be a valid worker\'s configuration file\.
-.
+
 .TP
 \fB\-a\fR, \fB\-\-all\-processes\fR:
-.
-.IP
-Perform start, stop or restart operations on all the workers in the given directory and the main synapse process\. Incompatible with \fB\-w\fR|\fB\-\-worker\fR\. Value passed must be a directory containing valid work configuration files\. All files ending with \fB\.yaml\fR extension shall be considered as configuration files and all other files in the directory are ignored\.
-.
+
 .SH "CONFIGURATION FILE"
 Configuration file may be generated as follows:
-.
 .IP "" 4
-.
 .nf
-
 $ python \-m synapse\.app\.homeserver \-c config\.yaml \-\-generate\-config \-\-server\-name=<server name>
-.
 .fi
-.
 .IP "" 0
-.
 .SH "ENVIRONMENT"
-.
 .TP
 \fBSYNAPSE_CACHE_FACTOR\fR
-Synapse\'s architecture is quite RAM hungry currently \- a lot of recent room data and metadata is deliberately cached in RAM in order to speed up common requests\. This will be improved in future, but for now the easiest way to either reduce the RAM usage (at the risk of slowing things down) is to set the SYNAPSE_CACHE_FACTOR environment variable\. Roughly speaking, a SYNAPSE_CACHE_FACTOR of 1\.0 will max out at around 3\-4GB of resident memory \- this is what we currently run the matrix\.org on\. The default setting is currently 0\.1, which is probably around a ~700MB footprint\. You can dial it down further to 0\.02 if desired, which targets roughly ~512MB\. Conversely you can dial it up if you need performance for lots of users and have a box with a lot of RAM\.
-.
+Synapse\'s architecture is quite RAM hungry currently \- we deliberately cache a lot of recent room data and metadata in RAM in order to speed up common requests\. We\'ll improve this in the future, but for now the easiest way to either reduce the RAM usage (at the risk of slowing things down) is to set the almost\-undocumented \fBSYNAPSE_CACHE_FACTOR\fR environment variable\. The default is 0\.5, which can be decreased to reduce RAM usage in memory constrained enviroments, or increased if performance starts to degrade\.
+.IP
+However, degraded performance due to a low cache factor, common on machines with slow disks, often leads to explosions in memory use due backlogged requests\. In this case, reducing the cache factor will make things worse\. Instead, try increasing it drastically\. 2\.0 is a good starting value\.
 .SH "COPYRIGHT"
-This man page was written by Sunil Mohan Adapa <\fIsunil@medhas\.org\fR> for Debian GNU/Linux distribution\.
-.
+This man page was written by Sunil Mohan Adapa <\fI\%mailto:sunil@medhas\.org\fR> for Debian GNU/Linux distribution\.
 .SH "SEE ALSO"
-synapse_port_db(1), hash_password(1), register_new_matrix_user(1)
+synapse_port_db(1), hash_password(1), register_new_matrix_user(1), synapse_review_recent_signups(1)

debian/synctl.ronn

@@ -68,4 +68,4 @@ Debian GNU/Linux distribution.
 
 ## SEE ALSO
 
-synapse_port_db(1), hash_password(1), register_new_matrix_user(1)
+synapse_port_db(1), hash_password(1), register_new_matrix_user(1), synapse_review_recent_signups(1)

docker/README.md

@@ -45,7 +45,7 @@ docker run -it --rm \
 ```
 
 For information on picking a suitable server name, see
-https://github.com/matrix-org/synapse/blob/master/INSTALL.md.
+https://matrix-org.github.io/synapse/latest/setup/installation.html.
 
 The above command will generate a `homeserver.yaml` in (typically)
 `/var/lib/docker/volumes/synapse-data/_data`. You should check this file, and
@@ -139,7 +139,7 @@ For documentation on using a reverse proxy, see
 https://github.com/matrix-org/synapse/blob/master/docs/reverse_proxy.md.
 
 For more information on enabling TLS support in synapse itself, see
-https://github.com/matrix-org/synapse/blob/master/INSTALL.md#tls-certificates. Of
+https://matrix-org.github.io/synapse/latest/setup/installation.html#tls-certificates. Of
 course, you will need to expose the TLS port from the container with a `-p`
 argument to `docker run`.
 

docker/build_debian.sh

@@ -15,6 +15,20 @@ cd /synapse/build
 dch -M -l "+$DIST" "build for $DIST"
 dch -M -r "" --force-distribution --distribution "$DIST"
 
+# if this is a prerelease, set the Section accordingly.
+#
+# When the package is later added to the package repo, reprepro will use the
+# Section to determine which "component" it should go into (see
+# https://manpages.debian.org/stretch/reprepro/reprepro.1.en.html#GUESSING)
+
+DEB_VERSION=`dpkg-parsechangelog -SVersion`
+case $DEB_VERSION in
+    *rc*|*a*|*b*|*c*)
+        sed -ie '/^Section:/c\Section: prerelease' debian/control
+        ;;
+esac
+
+
 dpkg-buildpackage -us -uc
 
 ls -l ..

docker/conf/homeserver.yaml

@@ -7,12 +7,6 @@
 tls_certificate_path: "/data/{{ SYNAPSE_SERVER_NAME }}.tls.crt"
 tls_private_key_path: "/data/{{ SYNAPSE_SERVER_NAME }}.tls.key"
 
-{% if SYNAPSE_ACME %}
-acme:
-    enabled: true
-    port: 8009
-{% endif %}
-
 {% endif %}
 
 ## Server ##

docs/.sample_config_header.yaml

@@ -8,7 +8,8 @@
 #
 # It is *not* intended to be copied and used as the basis for a real
 # homeserver.yaml. Instead, if you are starting from scratch, please generate
-# a fresh config using Synapse by following the instructions in INSTALL.md.
+# a fresh config using Synapse by following the instructions in
+# https://matrix-org.github.io/synapse/latest/setup/installation.html.
 
 # Configuration options that take a time period can be set using a number
 # followed by a letter. Letters have the following meanings:

docs/ACME.md

@@ -1,161 +0,0 @@
-# ACME
-
-From version 1.0 (June 2019) onwards, Synapse requires valid TLS
-certificates for communication between servers (by default on port
-`8448`) in addition to those that are client-facing (port `443`). To
-help homeserver admins fulfil this new requirement, Synapse v0.99.0
-introduced support for automatically provisioning certificates through 
-[Let's Encrypt](https://letsencrypt.org/) using the ACME protocol.
-
-## Deprecation of ACME v1
-
-In [March 2019](https://community.letsencrypt.org/t/end-of-life-plan-for-acmev1/88430),
-Let's Encrypt announced that they were deprecating version 1 of the ACME
-protocol, with the plan to disable the use of it for new accounts in
-November 2019, for new domains in June 2020, and for existing accounts and
-domains in June 2021.
-
-Synapse doesn't currently support version 2 of the ACME protocol, which
-means that:
-
-* for existing installs, Synapse's built-in ACME support will continue
-  to work until June 2021.
-* for new installs, this feature will not work at all.
-
-Either way, it is recommended to move from Synapse's ACME support
-feature to an external automated tool such as [certbot](https://github.com/certbot/certbot)
-(or browse [this list](https://letsencrypt.org/fr/docs/client-options/)
-for an alternative ACME client).
-
-It's also recommended to use a reverse proxy for the server-facing
-communications (more documentation about this can be found
-[here](/docs/reverse_proxy.md)) as well as the client-facing ones and
-have it serve the certificates.
-
-In case you can't do that and need Synapse to serve them itself, make
-sure to set the `tls_certificate_path` configuration setting to the path
-of the certificate (make sure to use the certificate containing the full
-certification chain, e.g. `fullchain.pem` if using certbot) and
-`tls_private_key_path` to the path of the matching private key. Note
-that in this case you will need to restart Synapse after each
-certificate renewal so that Synapse stops using the old certificate.
-
-If you still want to use Synapse's built-in ACME support, the rest of
-this document explains how to set it up. 
-
-## Initial setup 
-
-In the case that your `server_name` config variable is the same as
-the hostname that the client connects to, then the same certificate can be
-used between client and federation ports without issue.
-
-If your configuration file does not already have an `acme` section, you can
-generate an example config by running the `generate_config` executable. For
-example:
-
-```
-~/synapse/env3/bin/generate_config
-```
-
-You will need to provide Let's Encrypt (or another ACME provider) access to
-your Synapse ACME challenge responder on port 80, at the domain of your
-homeserver. This requires you to either change the port of the ACME listener
-provided by Synapse to a high port and reverse proxy to it, or use a tool
-like `authbind` to allow Synapse to listen on port 80 without root access.
-(Do not run Synapse with root permissions!) Detailed instructions are
-available under "ACME setup" below.
-
-If you already have certificates, you will need to back up or delete them
-(files `example.com.tls.crt` and `example.com.tls.key` in Synapse's root
-directory), Synapse's ACME implementation will not overwrite them.
-
-## ACME setup
-
-The main steps for enabling ACME support in short summary are:
-
-1. Allow Synapse to listen for incoming ACME challenges.
-1. Enable ACME support in `homeserver.yaml`.
-1. Move your old certificates (files `example.com.tls.crt` and `example.com.tls.key` out of the way if they currently exist at the paths specified in `homeserver.yaml`.
-1. Restart Synapse.
-
-Detailed instructions for each step are provided below.
-
-### Listening on port 80
-
-In order for Synapse to complete the ACME challenge to provision a
-certificate, it needs access to port 80. Typically listening on port 80 is
-only granted to applications running as root. There are thus two solutions to
-this problem.
-
-#### Using a reverse proxy
-
-A reverse proxy such as Apache or nginx allows a single process (the web
-server) to listen on port 80 and proxy traffic to the appropriate program
-running on your server. It is the recommended method for setting up ACME as
-it allows you to use your existing webserver while also allowing Synapse to
-provision certificates as needed.
-
-For nginx users, add the following line to your existing `server` block:
-
-```
-location /.well-known/acme-challenge {
-    proxy_pass http://localhost:8009;
-}
-```
-
-For Apache, add the following to your existing webserver config:
-
-```
-ProxyPass /.well-known/acme-challenge http://localhost:8009/.well-known/acme-challenge
-```
-
-Make sure to restart/reload your webserver after making changes.
-
-Now make the relevant changes in `homeserver.yaml` to enable ACME support:
-
-```
-acme:
-    enabled: true
-    port: 8009
-```
-
-#### Authbind
-
-`authbind` allows a program which does not run as root to bind to
-low-numbered ports in a controlled way. The setup is simpler, but requires a
-webserver not to already be running on port 80. **This includes every time
-Synapse renews a certificate**, which may be cumbersome if you usually run a
-web server on port 80. Nevertheless, if you're sure port 80 is not being used
-for any other purpose then all that is necessary is the following:
-
-Install `authbind`. For example, on Debian/Ubuntu:
-
-```
-sudo apt-get install authbind
-```
-
-Allow `authbind` to bind port 80:
-
-```
-sudo touch /etc/authbind/byport/80
-sudo chmod 777 /etc/authbind/byport/80
-```
-
-When Synapse is started, use the following syntax:
-
-```
-authbind --deep <synapse start command>
-```
-
-Make the relevant changes in `homeserver.yaml` to enable ACME support:
-
-```
-acme:
-    enabled: true
-```
-
-### (Re)starting synapse
-
-Ensure that the certificate paths specified in `homeserver.yaml` (`tls_certificate_path` and `tls_private_key_path`) do not currently point to any files. Synapse will not provision certificates if files exist, as it does not want to overwrite existing certificates.
-
-Finally, start/restart Synapse.

docs/MSC1711_certificates_FAQ.md

@@ -14,7 +14,7 @@ upgraded, however it may be of use to those with old installs returning to the
 project.
 
 If you are setting up a server from scratch you almost certainly should look at
-the [installation guide](../INSTALL.md) instead.
+the [installation guide](setup/installation.md) instead.
 
 ## Introduction
 The goal of Synapse 0.99.0 is to act as a stepping stone to Synapse 1.0.0. It
@@ -101,15 +101,6 @@ In this case, your `server_name` points to the host where your Synapse is
 running. There is no need to create a `.well-known` URI or an SRV record, but
 you will need to give Synapse a valid, signed, certificate.
 
-The easiest way to do that is with Synapse's built-in ACME (Let's Encrypt)
-support. Full details are in [ACME.md](./ACME.md) but, in a nutshell:
-
- 1. Allow Synapse to listen on port 80 with `authbind`, or forward it from a
-    reverse proxy.
- 2. Enable acme support in `homeserver.yaml`.
- 3. Move your old certificates out of the way.
- 4. Restart Synapse.
-
 ### If you do have an SRV record currently
 
 If you are using an SRV record, your matrix domain (`server_name`) may not
@@ -130,15 +121,9 @@ In this situation, you have three choices for how to proceed:
 #### Option 1: give Synapse a certificate for your matrix domain
 
 Synapse 1.0 will expect your server to present a TLS certificate for your
-`server_name` (`example.com` in the above example). You can achieve this by
-doing one of the following:
-
- * Acquire a certificate for the `server_name` yourself (for example, using
-   `certbot`), and give it and the key to Synapse via `tls_certificate_path`
-   and `tls_private_key_path`, or:
-
- * Use Synapse's [ACME support](./ACME.md), and forward port 80 on the
-   `server_name` domain to your Synapse instance.
+`server_name` (`example.com` in the above example). You can achieve this by acquiring a
+certificate for the `server_name` yourself (for example, using `certbot`), and giving it
+and the key to Synapse via `tls_certificate_path` and `tls_private_key_path`.
 
 #### Option 2: run Synapse behind a reverse proxy
 
@@ -147,7 +132,7 @@ your domain, you can simply route all traffic through the reverse proxy by
 updating the SRV record appropriately (or removing it, if the proxy listens on
 8448).
 
-See [reverse_proxy.md](reverse_proxy.md) for information on setting up a
+See [the reverse proxy documentation](reverse_proxy.md) for information on setting up a
 reverse proxy.
 
 #### Option 3: add a .well-known file to delegate your matrix traffic
@@ -161,10 +146,9 @@ You can do this with a `.well-known` file as follows:
     with Synapse 0.34 and earlier.
 
   2. Give Synapse a certificate corresponding to the target domain
-    (`customer.example.net` in the above example). You can either use Synapse's
-    built-in [ACME support](./ACME.md) for this (via the `domain` parameter in
-    the `acme` section), or acquire a certificate yourself and give it to
-    Synapse via `tls_certificate_path` and `tls_private_key_path`.
+    (`customer.example.net` in the above example). You can do this by acquire a 
+    certificate for the target domain and giving it to Synapse via `tls_certificate_path`
+    and `tls_private_key_path`.
 
  3. Restart Synapse to ensure the new certificate is loaded.
 
@@ -319,7 +303,7 @@ We no longer actively recommend against using a reverse proxy. Many admins will
 find it easier to direct federation traffic to a reverse proxy and manage their
 own TLS certificates, and this is a supported configuration.
 
-See [reverse_proxy.md](reverse_proxy.md) for information on setting up a
+See [the reverse proxy documentation](reverse_proxy.md) for information on setting up a
 reverse proxy.
 
 ### Do I still need to give my TLS certificates to Synapse if I am using a reverse proxy?

docs/SUMMARY.md

@@ -11,7 +11,7 @@
   - [Delegation](delegate.md)
 
 # Upgrading
-  - [Upgrading between Synapse Versions](upgrading/README.md)
+  - [Upgrading between Synapse Versions](upgrade.md)
   - [Upgrading from pre-Synapse 1.0](MSC1711_certificates_FAQ.md)
 
 # Usage
@@ -35,7 +35,7 @@
     - [URL Previews](url_previews.md)
     - [User Directory](user_directory.md)
     - [Message Retention Policies](message_retention_policies.md)
-    - [Pluggable Modules]()
+    - [Pluggable Modules](modules.md)
       - [Third Party Rules]()
       - [Spam Checker](spam_checker.md)
       - [Presence Router](presence_router_module.md)
@@ -61,6 +61,7 @@
       - [Server Version](admin_api/version_api.md)
     - [Manhole](manhole.md)
     - [Monitoring](metrics-howto.md)
+    - [Request log format](usage/administration/request_log.md)
     - [Scripts]()
 
 # Development
@@ -69,6 +70,7 @@
   - [Git Usage](dev/git.md)
   - [Testing]()
   - [OpenTracing](opentracing.md)
+  - [Database Schemas](development/database_schema.md)
   - [Synapse Architecture]()
     - [Log Contexts](log_contexts.md)
     - [Replication](replication.md)
@@ -84,4 +86,4 @@
   - [Scripts]()
 
 # Other
-  - [Dependency Deprecation Policy](deprecation_policy.md)
+  - [Dependency Deprecation Policy](deprecation_policy.md)

docs/admin_api/README.rst

@@ -2,7 +2,7 @@ Admin APIs
 ==========
 
 **Note**: The latest documentation can be viewed `here <https://matrix-org.github.io/synapse>`_.
-See `docs/README.md <../docs/README.md>`_ for more information.
+See `docs/README.md <../README.md>`_ for more information.
 
 **Please update links to point to the website instead.** Existing files in this directory
 are preserved to maintain historical links, but may be moved in the future.
@@ -10,5 +10,5 @@ are preserved to maintain historical links, but may be moved in the future.
 This directory includes documentation for the various synapse specific admin
 APIs available. Updates to the existing Admin API documentation should still
 be made to these files, but any new documentation files should instead be placed under
-`docs/usage/administration/admin_api <../docs/usage/administration/admin_api>`_.
+`docs/usage/administration/admin_api <../usage/administration/admin_api>`_.
 

docs/admin_api/delete_group.md

@@ -11,4 +11,4 @@ POST /_synapse/admin/v1/delete_group/<group_id>
 ```
 
 To use it, you will need to authenticate by providing an `access_token` for a
-server admin: see [Admin API](../../usage/administration/admin_api).
+server admin: see [Admin API](../usage/administration/admin_api).

docs/admin_api/event_reports.md

@@ -7,7 +7,7 @@ The api is:
 GET /_synapse/admin/v1/event_reports?from=0&limit=10
 ```
 To use it, you will need to authenticate by providing an `access_token` for a
-server admin: see [Admin API](../../usage/administration/admin_api).
+server admin: see [Admin API](../usage/administration/admin_api).
 
 It returns a JSON body like the following:
 
@@ -95,7 +95,7 @@ The api is:
 GET /_synapse/admin/v1/event_reports/<report_id>
 ```
 To use it, you will need to authenticate by providing an `access_token` for a
-server admin: see [Admin API](../../usage/administration/admin_api).
+server admin: see [Admin API](../usage/administration/admin_api).
 
 It returns a JSON body like the following:
 

docs/admin_api/media_admin_api.md

@@ -28,7 +28,7 @@ The API is:
 GET /_synapse/admin/v1/room/<room_id>/media
 ```
 To use it, you will need to authenticate by providing an `access_token` for a
-server admin: see [Admin API](../../usage/administration/admin_api).
+server admin: see [Admin API](../usage/administration/admin_api).
 
 The API returns a JSON body like the following:
 ```json
@@ -47,7 +47,7 @@ The API returns a JSON body like the following:
 ## List all media uploaded by a user
 
 Listing all media that has been uploaded by a local user can be achieved through
-the use of the [List media of a user](user_admin_api.rst#list-media-of-a-user)
+the use of the [List media of a user](user_admin_api.md#list-media-of-a-user)
 Admin API.
 
 # Quarantine media
@@ -257,7 +257,7 @@ URL Parameters
 * `server_name`: string - The name of your local server (e.g `matrix.org`).
 * `before_ts`: string representing a positive integer - Unix timestamp in ms.
 Files that were last used before this timestamp will be deleted. It is the timestamp of
-last access and not the timestamp creation. 
+last access and not the timestamp creation.
 * `size_gt`: Optional - string representing a positive integer - Size of the media in bytes.
 Files that are larger will be deleted. Defaults to `0`.
 * `keep_profiles`: Optional - string representing a boolean - Switch to also delete files
@@ -311,7 +311,7 @@ The following fields are returned in the JSON response body:
 * `deleted`: integer - The number of media items successfully deleted
 
 To use it, you will need to authenticate by providing an `access_token` for a
-server admin: see [Admin API](../../usage/administration/admin_api).
+server admin: see [Admin API](../usage/administration/admin_api).
 
 If the user re-requests purged remote media, synapse will re-request the media
 from the originating server.

docs/admin_api/purge_history_api.md

@@ -17,7 +17,7 @@ POST /_synapse/admin/v1/purge_history/<room_id>[/<event_id>]
 ```
 
 To use it, you will need to authenticate by providing an `access_token` for a
-server admin: [Admin API](../../usage/administration/admin_api)
+server admin: [Admin API](../usage/administration/admin_api)
 
 By default, events sent by local users are not deleted, as they may represent
 the only copies of this content in existence. (Events sent by remote users are

docs/admin_api/room_membership.md

@@ -24,7 +24,7 @@ POST /_synapse/admin/v1/join/<room_id_or_alias>
 ```
 
 To use it, you will need to authenticate by providing an `access_token` for a
-server admin: see [Admin API](../../usage/administration/admin_api).
+server admin: see [Admin API](../usage/administration/admin_api).
 
 Response:
 

docs/admin_api/rooms.md

@@ -1,13 +1,9 @@
 # Contents
 - [List Room API](#list-room-api)
-  * [Parameters](#parameters)
-  * [Usage](#usage)
 - [Room Details API](#room-details-api)
 - [Room Members API](#room-members-api)
 - [Room State API](#room-state-api)
 - [Delete Room API](#delete-room-api)
-  * [Parameters](#parameters-1)
-  * [Response](#response)
   * [Undoing room shutdowns](#undoing-room-shutdowns)
 - [Make Room Admin API](#make-room-admin-api)
 - [Forward Extremities Admin API](#forward-extremities-admin-api)
@@ -19,7 +15,7 @@ The List Room admin API allows server admins to get a list of rooms on their
 server. There are various parameters available that allow for filtering and
 sorting the returned list. This API supports pagination.
 
-## Parameters
+**Parameters**
 
 The following query parameters are available:
 
@@ -46,6 +42,8 @@ The following query parameters are available:
 * `search_term` - Filter rooms by their room name. Search term can be contained in any
                   part of the room name. Defaults to no filtering.
 
+**Response**
+
 The following fields are possible in the JSON response body:
 
 * `rooms` - An array of objects, each containing information about a room.
@@ -79,17 +77,15 @@ The following fields are possible in the JSON response body:
                  Use `prev_batch` for the `from` value in the next request to
                  get the "previous page" of results.
 
-## Usage
+The API is:
 
 A standard request with no filtering:
 
 ```
 GET /_synapse/admin/v1/rooms
-
-{}
 ```
 
-Response:
+A response body like the following is returned:
 
 ```jsonc
 {
@@ -137,11 +133,9 @@ Filtering by room name:
 
 ```
 GET /_synapse/admin/v1/rooms?search_term=TWIM
-
-{}
 ```
 
-Response:
+A response body like the following is returned:
 
 ```json
 {
@@ -172,11 +166,9 @@ Paginating through a list of rooms:
 
 ```
 GET /_synapse/admin/v1/rooms?order_by=size
-
-{}
 ```
 
-Response:
+A response body like the following is returned:
 
 ```jsonc
 {
@@ -228,11 +220,9 @@ parameter to the value of `next_token`.
 
 ```
 GET /_synapse/admin/v1/rooms?order_by=size&from=100
-
-{}
 ```
 
-Response:
+A response body like the following is returned:
 
 ```jsonc
 {
@@ -304,17 +294,13 @@ The following fields are possible in the JSON response body:
 * `history_visibility` - Who can see the room history. One of: ["invited", "joined", "shared", "world_readable"].
 * `state_events` - Total number of state_events of a room. Complexity of the room.
 
-## Usage
-
-A standard request:
+The API is:
 
 ```
 GET /_synapse/admin/v1/rooms/<room_id>
-
-{}
 ```
 
-Response:
+A response body like the following is returned:
 
 ```json
 {
@@ -347,17 +333,13 @@ The response includes the following fields:
 * `members` - A list of all the members that are present in the room, represented by their ids.
 * `total` - Total number of members in the room.
 
-## Usage
-
-A standard request:
+The API is:
 
 ```
 GET /_synapse/admin/v1/rooms/<room_id>/members
-
-{}
 ```
 
-Response:
+A response body like the following is returned:
 
 ```json
 {
@@ -378,17 +360,13 @@ The response includes the following fields:
 
 * `state` - The current state of the room at the time of request.
 
-## Usage
-
-A standard request:
+The API is:
 
 ```
 GET /_synapse/admin/v1/rooms/<room_id>/state
-
-{}
 ```
 
-Response:
+A response body like the following is returned:
 
 ```json
 {
@@ -432,6 +410,7 @@ DELETE /_synapse/admin/v1/rooms/<room_id>
 ```
 
 with a body of:
+
 ```json
 {
     "new_room_user_id": "@someuser:example.com",
@@ -443,7 +422,7 @@ with a body of:
 ```
 
 To use it, you will need to authenticate by providing an ``access_token`` for a
-server admin: see [Admin API](../../usage/administration/admin_api).
+server admin: see [Admin API](../usage/administration/admin_api).
 
 A response body like the following is returned:
 
@@ -461,7 +440,7 @@ A response body like the following is returned:
 }
 ```
 
-## Parameters
+**Parameters**
 
 The following parameters should be set in the URL:
 
@@ -491,7 +470,7 @@ The following JSON body parameters are available:
 
 The JSON body must not be empty. The body must be at least `{}`.
 
-## Response
+**Response**
 
 The following fields are returned in the JSON response body:
 
@@ -548,10 +527,10 @@ By default the server admin (the caller) is granted power, but another user can
 optionally be specified, e.g.:
 
 ```
-    POST /_synapse/admin/v1/rooms/<room_id_or_alias>/make_room_admin
-    {
-        "user_id": "@foo:example.com"
-    }
+POST /_synapse/admin/v1/rooms/<room_id_or_alias>/make_room_admin
+{
+    "user_id": "@foo:example.com"
+}
 ```
 
 # Forward Extremities Admin API
@@ -565,7 +544,7 @@ extremities accumulate in a room, performance can become degraded. For details,
 To check the status of forward extremities for a room:
 
 ```
-    GET /_synapse/admin/v1/rooms/<room_id_or_alias>/forward_extremities
+GET /_synapse/admin/v1/rooms/<room_id_or_alias>/forward_extremities
 ```
 
 A response as follows will be returned:
@@ -581,7 +560,7 @@ A response as follows will be returned:
       "received_ts": 1611263016761
     }
   ]
-}    
+}
 ```
 
 ## Deleting forward extremities
@@ -594,7 +573,7 @@ If a room has lots of forward extremities, the extra can be
 deleted as follows:
 
 ```
-    DELETE /_synapse/admin/v1/rooms/<room_id_or_alias>/forward_extremities
+DELETE /_synapse/admin/v1/rooms/<room_id_or_alias>/forward_extremities
 ```
 
 A response as follows will be returned, indicating the amount of forward extremities

docs/admin_api/server_notices.md

@@ -45,4 +45,4 @@ Once the notice has been sent, the API will return the following response:
 ```
 
 Note that server notices must be enabled in `homeserver.yaml` before this API
-can be used. See [server_notices.md](../server_notices.md) for more information.
+can be used. See [the server notices documentation](../server_notices.md) for more information.

docs/admin_api/statistics.md

@@ -10,7 +10,7 @@ GET /_synapse/admin/v1/statistics/users/media
 ```
 
 To use it, you will need to authenticate by providing an `access_token`
-for a server admin: see [Admin API](../../usage/administration/admin_api).
+for a server admin: see [Admin API](../usage/administration/admin_api).
 
 A response body like the following is returned:
 

docs/admin_api/user_admin_api.md

@@ -11,7 +11,7 @@ GET /_synapse/admin/v2/users/<user_id>
 ```
 
 To use it, you will need to authenticate by providing an `access_token` for a
-server admin: [Admin API](../../usage/administration/admin_api)
+server admin: [Admin API](../usage/administration/admin_api)
 
 It returns a JSON body like the following:
 
@@ -36,7 +36,17 @@ It returns a JSON body like the following:
     "creation_ts": 1560432506,
     "appservice_id": null,
     "consent_server_notice_sent": null,
-    "consent_version": null
+    "consent_version": null,
+    "external_ids": [
+        {
+            "auth_provider": "<provider1>",
+            "external_id": "<user_id_provider_1>"
+        },
+        {
+            "auth_provider": "<provider2>",
+            "external_id": "<user_id_provider_2>"
+        }
+    ]
 }
 ```
 
@@ -78,7 +88,7 @@ with a body of:
 ```
 
 To use it, you will need to authenticate by providing an `access_token` for a
-server admin: [Admin API](../../usage/administration/admin_api)
+server admin: [Admin API](../usage/administration/admin_api)
 
 URL parameters:
 
@@ -119,7 +129,7 @@ GET /_synapse/admin/v2/users?from=0&limit=10&guests=false
 ```
 
 To use it, you will need to authenticate by providing an `access_token` for a
-server admin: [Admin API](../../usage/administration/admin_api)
+server admin: [Admin API](../usage/administration/admin_api)
 
 A response body like the following is returned:
 
@@ -237,7 +247,7 @@ See also: [Client Server
 API Whois](https://matrix.org/docs/spec/client_server/r0.6.1#get-matrix-client-r0-admin-whois-userid).
 
 To use it, you will need to authenticate by providing an `access_token` for a
-server admin: [Admin API](../../usage/administration/admin_api)
+server admin: [Admin API](../usage/administration/admin_api)
 
 It returns a JSON body like the following:
 
@@ -294,7 +304,7 @@ with a body of:
 ```
 
 To use it, you will need to authenticate by providing an `access_token` for a
-server admin: [Admin API](../../usage/administration/admin_api)
+server admin: [Admin API](../usage/administration/admin_api)
 
 The erase parameter is optional and defaults to `false`.
 An empty body may be passed for backwards compatibility.
@@ -339,7 +349,7 @@ with a body of:
 ```
 
 To use it, you will need to authenticate by providing an `access_token` for a
-server admin: [Admin API](../../usage/administration/admin_api)
+server admin: [Admin API](../usage/administration/admin_api)
 
 The parameter `new_password` is required.
 The parameter `logout_devices` is optional and defaults to `true`.
@@ -354,7 +364,7 @@ GET /_synapse/admin/v1/users/<user_id>/admin
 ```
 
 To use it, you will need to authenticate by providing an `access_token` for a
-server admin: [Admin API](../../usage/administration/admin_api)
+server admin: [Admin API](../usage/administration/admin_api)
 
 A response body like the following is returned:
 
@@ -384,7 +394,7 @@ with a body of:
 ```
 
 To use it, you will need to authenticate by providing an `access_token` for a
-server admin: [Admin API](../../usage/administration/admin_api)
+server admin: [Admin API](../usage/administration/admin_api)
 
 
 ## List room memberships of a user
@@ -398,7 +408,7 @@ GET /_synapse/admin/v1/users/<user_id>/joined_rooms
 ```
 
 To use it, you will need to authenticate by providing an `access_token` for a
-server admin: [Admin API](../../usage/administration/admin_api)
+server admin: [Admin API](../usage/administration/admin_api)
 
 A response body like the following is returned:
 
@@ -443,7 +453,7 @@ GET /_synapse/admin/v1/users/<user_id>/media
 ```
 
 To use it, you will need to authenticate by providing an `access_token` for a
-server admin: [Admin API](../../usage/administration/admin_api)
+server admin: [Admin API](../usage/administration/admin_api)
 
 A response body like the following is returned:
 
@@ -591,7 +601,7 @@ GET /_synapse/admin/v2/users/<user_id>/devices
 ```
 
 To use it, you will need to authenticate by providing an `access_token` for a
-server admin: [Admin API](../../usage/administration/admin_api)
+server admin: [Admin API](../usage/administration/admin_api)
 
 A response body like the following is returned:
 
@@ -659,7 +669,7 @@ POST /_synapse/admin/v2/users/<user_id>/delete_devices
 ```
 
 To use it, you will need to authenticate by providing an `access_token` for a
-server admin: [Admin API](../../usage/administration/admin_api)
+server admin: [Admin API](../usage/administration/admin_api)
 
 An empty JSON dict is returned.
 
@@ -683,7 +693,7 @@ GET /_synapse/admin/v2/users/<user_id>/devices/<device_id>
 ```
 
 To use it, you will need to authenticate by providing an `access_token` for a
-server admin: [Admin API](../../usage/administration/admin_api)
+server admin: [Admin API](../usage/administration/admin_api)
 
 A response body like the following is returned:
 
@@ -731,7 +741,7 @@ PUT /_synapse/admin/v2/users/<user_id>/devices/<device_id>
 ```
 
 To use it, you will need to authenticate by providing an `access_token` for a
-server admin: [Admin API](../../usage/administration/admin_api)
+server admin: [Admin API](../usage/administration/admin_api)
 
 An empty JSON dict is returned.
 
@@ -760,7 +770,7 @@ DELETE /_synapse/admin/v2/users/<user_id>/devices/<device_id>
 ```
 
 To use it, you will need to authenticate by providing an `access_token` for a
-server admin: [Admin API](../../usage/administration/admin_api)
+server admin: [Admin API](../usage/administration/admin_api)
 
 An empty JSON dict is returned.
 
@@ -781,7 +791,7 @@ GET /_synapse/admin/v1/users/<user_id>/pushers
 ```
 
 To use it, you will need to authenticate by providing an `access_token` for a
-server admin: [Admin API](../../usage/administration/admin_api)
+server admin: [Admin API](../usage/administration/admin_api)
 
 A response body like the following is returned:
 
@@ -872,7 +882,7 @@ POST /_synapse/admin/v1/users/<user_id>/shadow_ban
 ```
 
 To use it, you will need to authenticate by providing an `access_token` for a
-server admin: [Admin API](../../usage/administration/admin_api)
+server admin: [Admin API](../usage/administration/admin_api)
 
 An empty JSON dict is returned.
 
@@ -897,7 +907,7 @@ GET /_synapse/admin/v1/users/<user_id>/override_ratelimit
 ```
 
 To use it, you will need to authenticate by providing an `access_token` for a
-server admin: [Admin API](../../usage/administration/admin_api)
+server admin: [Admin API](../usage/administration/admin_api)
 
 A response body like the following is returned:
 
@@ -939,7 +949,7 @@ POST /_synapse/admin/v1/users/<user_id>/override_ratelimit
 ```
 
 To use it, you will need to authenticate by providing an `access_token` for a
-server admin: [Admin API](../../usage/administration/admin_api)
+server admin: [Admin API](../usage/administration/admin_api)
 
 A response body like the following is returned:
 
@@ -984,7 +994,7 @@ DELETE /_synapse/admin/v1/users/<user_id>/override_ratelimit
 ```
 
 To use it, you will need to authenticate by providing an `access_token` for a
-server admin: [Admin API](../../usage/administration/admin_api)
+server admin: [Admin API](../usage/administration/admin_api)
 
 An empty JSON dict is returned.
 

docs/consent_tracking.md

@@ -24,8 +24,8 @@ To enable this, first create templates for the policy and success pages.
 These should be stored on the local filesystem.
 
 These templates use the [Jinja2](http://jinja.pocoo.org) templating language,
-and [docs/privacy_policy_templates](privacy_policy_templates) gives
-examples of the sort of thing that can be done.
+and [docs/privacy_policy_templates](https://github.com/matrix-org/synapse/tree/develop/docs/privacy_policy_templates/)
+gives examples of the sort of thing that can be done.
 
 Note that the templates must be stored under a name giving the language of the
 template - currently this must always be `en` (for "English");
@@ -152,7 +152,7 @@ version of the policy. To do so:
 
  * ensure that the consent resource is configured, as in the previous section
 
- * ensure that server notices are configured, as in [server_notices.md](server_notices.md).
+ * ensure that server notices are configured, as in [the server notice documentation](server_notices.md).
 
  * Add `server_notice_content` under `user_consent` in `homeserver.yaml`. For
    example:

docs/delegate.md

@@ -74,7 +74,7 @@ We no longer actively recommend against using a reverse proxy. Many admins will
 find it easier to direct federation traffic to a reverse proxy and manage their
 own TLS certificates, and this is a supported configuration.
 
-See [reverse_proxy.md](reverse_proxy.md) for information on setting up a
+See [the reverse proxy documentation](reverse_proxy.md) for information on setting up a
 reverse proxy.
 
 ### Do I still need to give my TLS certificates to Synapse if I am using a reverse proxy?

docs/development/database_schema.md

@@ -0,0 +1,137 @@
+# Synapse database schema files
+
+Synapse's database schema is stored in the `synapse.storage.schema` module.
+
+## Logical databases
+
+Synapse supports splitting its datastore across multiple physical databases (which can
+be useful for large installations), and the schema files are therefore split according
+to the logical database they apply to.
+
+At the time of writing, the following "logical" databases are supported:
+
+* `state` - used to store Matrix room state (more specifically, `state_groups`,
+  their relationships and contents).
+* `main` - stores everything else.
+
+Additionally, the `common` directory contains schema files for tables which must be
+present on *all* physical databases.
+
+## Synapse schema versions
+
+Synapse manages its database schema via "schema versions". These are mainly used to
+help avoid confusion if the Synapse codebase is rolled back after the database is
+updated. They work as follows:
+
+ * The Synapse codebase defines a constant `synapse.storage.schema.SCHEMA_VERSION`
+   which represents the expectations made about the database by that version. For
+   example, as of Synapse v1.36, this is `59`.
+
+ * The database stores a "compatibility version" in
+   `schema_compat_version.compat_version` which defines the `SCHEMA_VERSION` of the
+   oldest version of Synapse which will work with the database. On startup, if
+   `compat_version` is found to be newer than `SCHEMA_VERSION`, Synapse will refuse to
+   start.
+
+   Synapse automatically updates this field from
+   `synapse.storage.schema.SCHEMA_COMPAT_VERSION`.
+
+ * Whenever a backwards-incompatible change is made to the database format (normally
+   via a `delta` file), `synapse.storage.schema.SCHEMA_COMPAT_VERSION` is also updated
+   so that administrators can not accidentally roll back to a too-old version of Synapse.
+
+Generally, the goal is to maintain compatibility with at least one or two previous
+releases of Synapse, so any substantial change tends to require multiple releases and a
+bit of forward-planning to get right.
+
+As a worked example: we want to remove the `room_stats_historical` table. Here is how it
+might pan out.
+
+ 1. Replace any code that *reads* from `room_stats_historical` with alternative
+    implementations, but keep writing to it in case of rollback to an earlier version.
+    Also, increase `synapse.storage.schema.SCHEMA_VERSION`.  In this
+    instance, there is no existing code which reads from `room_stats_historical`, so
+    our starting point is:
+
+    v1.36.0: `SCHEMA_VERSION=59`, `SCHEMA_COMPAT_VERSION=59`
+
+ 2. Next (say in Synapse v1.37.0): remove the code that *writes* to
+    `room_stats_historical`, but don’t yet remove the table in case of rollback to
+    v1.36.0. Again, we increase `synapse.storage.schema.SCHEMA_VERSION`, but
+    because we have not broken compatibility with v1.36, we do not yet update
+    `SCHEMA_COMPAT_VERSION`. We now have:
+
+    v1.37.0: `SCHEMA_VERSION=60`, `SCHEMA_COMPAT_VERSION=59`.
+
+ 3. Later (say in Synapse v1.38.0): we can remove the table altogether. This will
+    break compatibility with v1.36.0, so we must update `SCHEMA_COMPAT_VERSION` accordingly.
+    There is no need to update `synapse.storage.schema.SCHEMA_VERSION`, since there is no
+    change to the Synapse codebase here. So we end up with:
+
+    v1.38.0: `SCHEMA_VERSION=60`, `SCHEMA_COMPAT_VERSION=60`.
+
+If in doubt about whether to update `SCHEMA_VERSION` or not, it is generally best to
+lean towards doing so.
+
+## Full schema dumps
+
+In the `full_schemas` directories, only the most recently-numbered snapshot is used
+(`54` at the time of writing). Older snapshots (eg, `16`) are present for historical
+reference only.
+
+### Building full schema dumps
+
+If you want to recreate these schemas, they need to be made from a database that
+has had all background updates run.
+
+To do so, use `scripts-dev/make_full_schema.sh`. This will produce new
+`full.sql.postgres` and `full.sql.sqlite` files.
+
+Ensure postgres is installed, then run:
+
+    ./scripts-dev/make_full_schema.sh -p postgres_username -o output_dir/
+
+NB at the time of writing, this script predates the split into separate `state`/`main`
+databases so will require updates to handle that correctly.
+
+## Boolean columns
+
+Boolean columns require special treatment, since SQLite treats booleans the
+same as integers.
+
+There are three separate aspects to this:
+
+ * Any new boolean column must be added to the `BOOLEAN_COLUMNS` list in
+   `scripts/synapse_port_db`. This tells the port script to cast the integer
+   value from SQLite to a boolean before writing the value to the postgres
+   database.
+
+ * Before SQLite 3.23, `TRUE` and `FALSE` were not recognised as constants by
+   SQLite, and the `IS [NOT] TRUE`/`IS [NOT] FALSE` operators were not
+   supported. This makes it necessary to avoid using `TRUE` and `FALSE`
+   constants in SQL commands.
+
+   For example, to insert a `TRUE` value into the database, write:
+
+   ```python
+   txn.execute("INSERT INTO tbl(col) VALUES (?)", (True, ))
+   ```
+
+ * Default values for new boolean columns present a particular
+   difficulty. Generally it is best to create separate schema files for
+   Postgres and SQLite. For example:
+
+   ```sql
+   # in 00delta.sql.postgres:
+   ALTER TABLE tbl ADD COLUMN col BOOLEAN DEFAULT FALSE;
+   ```
+
+   ```sql
+   # in 00delta.sql.sqlite:
+   ALTER TABLE tbl ADD COLUMN col BOOLEAN DEFAULT 0;
+   ```
+
+   Note that there is a particularly insidious failure mode here: the Postgres
+   flavour will be accepted by SQLite 3.22, but will give a column whose
+   default value is the **string** `"FALSE"` - which, when cast back to a boolean
+   in Python, evaluates to `True`.

docs/federate.md

@@ -14,7 +14,7 @@ you set the `server_name` to match your machine's public DNS hostname.
 
 For this default configuration to work, you will need to listen for TLS
 connections on port 8448. The preferred way to do that is by using a
-reverse proxy: see [reverse_proxy.md](<reverse_proxy.md>) for instructions
+reverse proxy: see [the reverse proxy documentation](reverse_proxy.md) for instructions
 on how to correctly set one up.
 
 In some cases you might not want to run Synapse on the machine that has
@@ -23,7 +23,7 @@ traffic to use a different port than 8448. For example, you might want to
 have your user names look like `@user:example.com`, but you want to run
 Synapse on `synapse.example.com` on port 443. This can be done using
 delegation, which allows an admin to control where federation traffic should
-be sent. See [delegate.md](delegate.md) for instructions on how to set this up.
+be sent. See [the delegation documentation](delegate.md) for instructions on how to set this up.
 
 Once federation has been configured, you should be able to join a room over
 federation. A good place to start is `#synapse:matrix.org` - a room for
@@ -44,8 +44,8 @@ a complicated dance which requires connections in both directions).
 
 Another common problem is that people on other servers can't join rooms that
 you invite them to. This can be caused by an incorrectly-configured reverse
-proxy: see [reverse_proxy.md](<reverse_proxy.md>) for instructions on how to correctly
-configure a reverse proxy.
+proxy: see [the reverse proxy documentation](reverse_proxy.md) for instructions on how
+to correctly configure a reverse proxy.
 
 ### Known issues
 
@@ -63,4 +63,4 @@ release of Synapse.
 
 If you want to get up and running quickly with a trio of homeservers in a
 private federation, there is a script in the `demo` directory. This is mainly
-useful just for development purposes. See [demo/README](<../demo/README>).
+useful just for development purposes. See [demo/README](https://github.com/matrix-org/synapse/tree/develop/demo/).

docs/log_contexts.md

@@ -14,12 +14,16 @@ The `synapse.logging.context` module provides a facilities for managing
 the current log context (as well as providing the `LoggingContextFilter`
 class).
 
-Deferreds make the whole thing complicated, so this document describes
+Asynchronous functions make the whole thing complicated, so this document describes
 how it all works, and how to write code which follows the rules.
 
-##Logcontexts without Deferreds
+In this document, "awaitable" refers to any object which can be `await`ed. In the context of
+Synapse, that normally means either a coroutine or a Twisted 
+[`Deferred`](https://twistedmatrix.com/documents/current/api/twisted.internet.defer.Deferred.html).
 
-In the absence of any Deferred voodoo, things are simple enough. As with
+## Logcontexts without asynchronous code
+
+In the absence of any asynchronous voodoo, things are simple enough. As with
 any code of this nature, the rule is that our function should leave
 things as it found them:
 
@@ -55,126 +59,109 @@ def do_request_handling():
     logger.debug("phew")
 ```
 
-## Using logcontexts with Deferreds
+## Using logcontexts with awaitables
 
-Deferreds --- and in particular, `defer.inlineCallbacks` --- break the
-linear flow of code so that there is no longer a single entry point
-where we should set the logcontext and a single exit point where we
-should remove it.
+Awaitables break the linear flow of code so that there is no longer a single entry point
+where we should set the logcontext and a single exit point where we should remove it.
 
 Consider the example above, where `do_request_handling` needs to do some
-blocking operation, and returns a deferred:
+blocking operation, and returns an awaitable:
 
 ```python
-@defer.inlineCallbacks
-def handle_request(request_id):
+async def handle_request(request_id):
     with context.LoggingContext() as request_context:
         request_context.request = request_id
-        yield do_request_handling()
+        await do_request_handling()
         logger.debug("finished")
 ```
 
 In the above flow:
 
 -   The logcontext is set
--   `do_request_handling` is called, and returns a deferred
--   `handle_request` yields the deferred
--   The `inlineCallbacks` wrapper of `handle_request` returns a deferred
+-   `do_request_handling` is called, and returns an awaitable
+-   `handle_request` awaits the awaitable
+-   Execution of `handle_request` is suspended
 
 So we have stopped processing the request (and will probably go on to
 start processing the next), without clearing the logcontext.
 
 To circumvent this problem, synapse code assumes that, wherever you have
-a deferred, you will want to yield on it. To that end, whereever
-functions return a deferred, we adopt the following conventions:
+an awaitable, you will want to `await` it. To that end, whereever
+functions return awaitables, we adopt the following conventions:
 
-**Rules for functions returning deferreds:**
+**Rules for functions returning awaitables:**
 
-> -   If the deferred is already complete, the function returns with the
+> -   If the awaitable is already complete, the function returns with the
 >     same logcontext it started with.
-> -   If the deferred is incomplete, the function clears the logcontext
->     before returning; when the deferred completes, it restores the
+> -   If the awaitable is incomplete, the function clears the logcontext
+>     before returning; when the awaitable completes, it restores the
 >     logcontext before running any callbacks.
 
 That sounds complicated, but actually it means a lot of code (including
 the example above) "just works". There are two cases:
 
--   If `do_request_handling` returns a completed deferred, then the
+-   If `do_request_handling` returns a completed awaitable, then the
     logcontext will still be in place. In this case, execution will
-    continue immediately after the `yield`; the "finished" line will
+    continue immediately after the `await`; the "finished" line will
     be logged against the right context, and the `with` block restores
     the original context before we return to the caller.
--   If the returned deferred is incomplete, `do_request_handling` clears
+-   If the returned awaitable is incomplete, `do_request_handling` clears
     the logcontext before returning. The logcontext is therefore clear
-    when `handle_request` yields the deferred. At that point, the
-    `inlineCallbacks` wrapper adds a callback to the deferred, and
-    returns another (incomplete) deferred to the caller, and it is safe
-    to begin processing the next request.
+    when `handle_request` `await`s the awaitable.
 
-    Once `do_request_handling`'s deferred completes, it will reinstate
-    the logcontext, before running the callback added by the
-    `inlineCallbacks` wrapper. That callback runs the second half of
-    `handle_request`, so again the "finished" line will be logged
-    against the right context, and the `with` block restores the
-    original context.
+    Once `do_request_handling`'s awaitable completes, it will reinstate
+    the logcontext, before running the second half of `handle_request`,
+    so again the "finished" line will be logged against the right context,
+    and the `with` block restores the original context.
 
 As an aside, it's worth noting that `handle_request` follows our rules
--though that only matters if the caller has its own logcontext which it
+- though that only matters if the caller has its own logcontext which it
 cares about.
 
 The following sections describe pitfalls and helpful patterns when
 implementing these rules.
 
-Always yield your deferreds
----------------------------
+Always await your awaitables
+----------------------------
 
-Whenever you get a deferred back from a function, you should `yield` on
-it as soon as possible. (Returning it directly to your caller is ok too,
-if you're not doing `inlineCallbacks`.) Do not pass go; do not do any
-logging; do not call any other functions.
+Whenever you get an awaitable back from a function, you should `await` on
+it as soon as possible. Do not pass go; do not do any logging; do not
+call any other functions.
 
 ```python
-@defer.inlineCallbacks
-def fun():
+async def fun():
     logger.debug("starting")
-    yield do_some_stuff()       # just like this
+    await do_some_stuff()       # just like this
 
-    d = more_stuff()
-    result = yield d            # also fine, of course
+    coro = more_stuff()
+    result = await coro         # also fine, of course
 
     return result
-
-def nonInlineCallbacksFun():
-    logger.debug("just a wrapper really")
-    return do_some_stuff()      # this is ok too - the caller will yield on
-                                # it anyway.
 ```
 
 Provided this pattern is followed all the way back up to the callchain
 to where the logcontext was set, this will make things work out ok:
 provided `do_some_stuff` and `more_stuff` follow the rules above, then
-so will `fun` (as wrapped by `inlineCallbacks`) and
-`nonInlineCallbacksFun`.
+so will `fun`.
 
-It's all too easy to forget to `yield`: for instance if we forgot that
-`do_some_stuff` returned a deferred, we might plough on regardless. This
+It's all too easy to forget to `await`: for instance if we forgot that
+`do_some_stuff` returned an awaitable, we might plough on regardless. This
 leads to a mess; it will probably work itself out eventually, but not
 before a load of stuff has been logged against the wrong context.
 (Normally, other things will break, more obviously, if you forget to
-`yield`, so this tends not to be a major problem in practice.)
+`await`, so this tends not to be a major problem in practice.)
 
 Of course sometimes you need to do something a bit fancier with your
-Deferreds - not all code follows the linear A-then-B-then-C pattern.
+awaitable - not all code follows the linear A-then-B-then-C pattern.
 Notes on implementing more complex patterns are in later sections.
 
-## Where you create a new Deferred, make it follow the rules
+## Where you create a new awaitable, make it follow the rules
 
-Most of the time, a Deferred comes from another synapse function.
-Sometimes, though, we need to make up a new Deferred, or we get a
-Deferred back from external code. We need to make it follow our rules.
+Most of the time, an awaitable comes from another synapse function.
+Sometimes, though, we need to make up a new awaitable, or we get an awaitable
+back from external code. We need to make it follow our rules.
 
-The easy way to do it is with a combination of `defer.inlineCallbacks`,
-and `context.PreserveLoggingContext`. Suppose we want to implement
+The easy way to do it is by using `context.make_deferred_yieldable`. Suppose we want to implement
 `sleep`, which returns a deferred which will run its callbacks after a
 given number of seconds. That might look like:
 
@@ -186,25 +173,12 @@ def get_sleep_deferred(seconds):
     return d
 ```
 
-That doesn't follow the rules, but we can fix it by wrapping it with
-`PreserveLoggingContext` and `yield` ing on it:
+That doesn't follow the rules, but we can fix it by calling it through
+`context.make_deferred_yieldable`:
 
 ```python
-@defer.inlineCallbacks
-def sleep(seconds):
-    with PreserveLoggingContext():
-        yield get_sleep_deferred(seconds)
-```
-
-This technique works equally for external functions which return
-deferreds, or deferreds we have made ourselves.
-
-You can also use `context.make_deferred_yieldable`, which just does the
-boilerplate for you, so the above could be written:
-
-```python
-def sleep(seconds):
-    return context.make_deferred_yieldable(get_sleep_deferred(seconds))
+async def sleep(seconds):
+    return await context.make_deferred_yieldable(get_sleep_deferred(seconds))
 ```
 
 ## Fire-and-forget
@@ -213,20 +187,18 @@ Sometimes you want to fire off a chain of execution, but not wait for
 its result. That might look a bit like this:
 
 ```python
-@defer.inlineCallbacks
-def do_request_handling():
-    yield foreground_operation()
+async def do_request_handling():
+    await foreground_operation()
 
     # *don't* do this
     background_operation()
 
     logger.debug("Request handling complete")
 
-@defer.inlineCallbacks
-def background_operation():
-    yield first_background_step()
+async def background_operation():
+    await first_background_step()
     logger.debug("Completed first step")
-    yield second_background_step()
+    await second_background_step()
     logger.debug("Completed second step")
 ```
 
@@ -235,13 +207,13 @@ The above code does a couple of steps in the background after
 against the `request_context` logcontext, which may or may not be
 desirable. There are two big problems with the above, however. The first
 problem is that, if `background_operation` returns an incomplete
-Deferred, it will expect its caller to `yield` immediately, so will have
+awaitable, it will expect its caller to `await` immediately, so will have
 cleared the logcontext. In this example, that means that 'Request
 handling complete' will be logged without any context.
 
 The second problem, which is potentially even worse, is that when the
-Deferred returned by `background_operation` completes, it will restore
-the original logcontext. There is nothing waiting on that Deferred, so
+awaitable returned by `background_operation` completes, it will restore
+the original logcontext. There is nothing waiting on that awaitable, so
 the logcontext will leak into the reactor and possibly get attached to
 some arbitrary future operation.
 
@@ -254,9 +226,8 @@ deferred completes will be the empty logcontext), and will restore the
 current logcontext before continuing the foreground process:
 
 ```python
-@defer.inlineCallbacks
-def do_request_handling():
-    yield foreground_operation()
+async def do_request_handling():
+    await foreground_operation()
 
     # start background_operation off in the empty logcontext, to
     # avoid leaking the current context into the reactor.
@@ -274,16 +245,15 @@ Obviously that option means that the operations done in
 
 The second option is to use `context.run_in_background`, which wraps a
 function so that it doesn't reset the logcontext even when it returns
-an incomplete deferred, and adds a callback to the returned deferred to
+an incomplete awaitable, and adds a callback to the returned awaitable to
 reset the logcontext. In other words, it turns a function that follows
-the Synapse rules about logcontexts and Deferreds into one which behaves
+the Synapse rules about logcontexts and awaitables into one which behaves
 more like an external function --- the opposite operation to that
 described in the previous section. It can be used like this:
 
 ```python
-@defer.inlineCallbacks
-def do_request_handling():
-    yield foreground_operation()
+async def do_request_handling():
+    await foreground_operation()
 
     context.run_in_background(background_operation)
 
@@ -294,152 +264,53 @@ def do_request_handling():
 ## Passing synapse deferreds into third-party functions
 
 A typical example of this is where we want to collect together two or
-more deferred via `defer.gatherResults`:
+more awaitables via `defer.gatherResults`:
 
 ```python
-d1 = operation1()
-d2 = operation2()
-d3 = defer.gatherResults([d1, d2])
+a1 = operation1()
+a2 = operation2()
+a3 = defer.gatherResults([a1, a2])
 ```
 
 This is really a variation of the fire-and-forget problem above, in that
-we are firing off `d1` and `d2` without yielding on them. The difference
+we are firing off `a1` and `a2` without awaiting on them. The difference
 is that we now have third-party code attached to their callbacks. Anyway
 either technique given in the [Fire-and-forget](#fire-and-forget)
 section will work.
 
-Of course, the new Deferred returned by `gatherResults` needs to be
+Of course, the new awaitable returned by `gather` needs to be
 wrapped in order to make it follow the logcontext rules before we can
-yield it, as described in [Where you create a new Deferred, make it
+yield it, as described in [Where you create a new awaitable, make it
 follow the
-rules](#where-you-create-a-new-deferred-make-it-follow-the-rules).
+rules](#where-you-create-a-new-awaitable-make-it-follow-the-rules).
 
 So, option one: reset the logcontext before starting the operations to
 be gathered:
 
 ```python
-@defer.inlineCallbacks
-def do_request_handling():
+async def do_request_handling():
     with PreserveLoggingContext():
-        d1 = operation1()
-        d2 = operation2()
-        result = yield defer.gatherResults([d1, d2])
+        a1 = operation1()
+        a2 = operation2()
+        result = await defer.gatherResults([a1, a2])
 ```
 
 In this case particularly, though, option two, of using
-`context.preserve_fn` almost certainly makes more sense, so that
+`context.run_in_background` almost certainly makes more sense, so that
 `operation1` and `operation2` are both logged against the original
 logcontext. This looks like:
 
 ```python
-@defer.inlineCallbacks
-def do_request_handling():
-    d1 = context.preserve_fn(operation1)()
-    d2 = context.preserve_fn(operation2)()
+async def do_request_handling():
+    a1 = context.run_in_background(operation1)
+    a2 = context.run_in_background(operation2)
 
-    with PreserveLoggingContext():
-        result = yield defer.gatherResults([d1, d2])
+    result = await make_deferred_yieldable(defer.gatherResults([a1, a2]))
 ```
 
-## Was all this really necessary?
+## A note on garbage-collection of awaitable chains
 
-The conventions used work fine for a linear flow where everything
-happens in series via `defer.inlineCallbacks` and `yield`, but are
-certainly tricky to follow for any more exotic flows. It's hard not to
-wonder if we could have done something else.
-
-We're not going to rewrite Synapse now, so the following is entirely of
-academic interest, but I'd like to record some thoughts on an
-alternative approach.
-
-I briefly prototyped some code following an alternative set of rules. I
-think it would work, but I certainly didn't get as far as thinking how
-it would interact with concepts as complicated as the cache descriptors.
-
-My alternative rules were:
-
--   functions always preserve the logcontext of their caller, whether or
-    not they are returning a Deferred.
--   Deferreds returned by synapse functions run their callbacks in the
-    same context as the function was orignally called in.
-
-The main point of this scheme is that everywhere that sets the
-logcontext is responsible for clearing it before returning control to
-the reactor.
-
-So, for example, if you were the function which started a
-`with LoggingContext` block, you wouldn't `yield` within it --- instead
-you'd start off the background process, and then leave the `with` block
-to wait for it:
-
-```python
-def handle_request(request_id):
-    with context.LoggingContext() as request_context:
-        request_context.request = request_id
-        d = do_request_handling()
-
-    def cb(r):
-        logger.debug("finished")
-
-    d.addCallback(cb)
-    return d
-```
-
-(in general, mixing `with LoggingContext` blocks and
-`defer.inlineCallbacks` in the same function leads to slighly
-counter-intuitive code, under this scheme).
-
-Because we leave the original `with` block as soon as the Deferred is
-returned (as opposed to waiting for it to be resolved, as we do today),
-the logcontext is cleared before control passes back to the reactor; so
-if there is some code within `do_request_handling` which needs to wait
-for a Deferred to complete, there is no need for it to worry about
-clearing the logcontext before doing so:
-
-```python
-def handle_request():
-    r = do_some_stuff()
-    r.addCallback(do_some_more_stuff)
-    return r
-```
-
---- and provided `do_some_stuff` follows the rules of returning a
-Deferred which runs its callbacks in the original logcontext, all is
-happy.
-
-The business of a Deferred which runs its callbacks in the original
-logcontext isn't hard to achieve --- we have it today, in the shape of
-`context._PreservingContextDeferred`:
-
-```python
-def do_some_stuff():
-    deferred = do_some_io()
-    pcd = _PreservingContextDeferred(LoggingContext.current_context())
-    deferred.chainDeferred(pcd)
-    return pcd
-```
-
-It turns out that, thanks to the way that Deferreds chain together, we
-automatically get the property of a context-preserving deferred with
-`defer.inlineCallbacks`, provided the final Defered the function
-`yields` on has that property. So we can just write:
-
-```python
-@defer.inlineCallbacks
-def handle_request():
-    yield do_some_stuff()
-    yield do_some_more_stuff()
-```
-
-To conclude: I think this scheme would have worked equally well, with
-less danger of messing it up, and probably made some more esoteric code
-easier to write. But again --- changing the conventions of the entire
-Synapse codebase is not a sensible option for the marginal improvement
-offered.
-
-## A note on garbage-collection of Deferred chains
-
-It turns out that our logcontext rules do not play nicely with Deferred
+It turns out that our logcontext rules do not play nicely with awaitable
 chains which get orphaned and garbage-collected.
 
 Imagine we have some code that looks like this:
@@ -451,13 +322,12 @@ def on_something_interesting():
     for d in listener_queue:
         d.callback("foo")
 
-@defer.inlineCallbacks
-def await_something_interesting():
-    new_deferred = defer.Deferred()
-    listener_queue.append(new_deferred)
+async def await_something_interesting():
+    new_awaitable = defer.Deferred()
+    listener_queue.append(new_awaitable)
 
     with PreserveLoggingContext():
-        yield new_deferred
+        await new_awaitable
 ```
 
 Obviously, the idea here is that we have a bunch of things which are
@@ -476,18 +346,19 @@ def reset_listener_queue():
     listener_queue.clear()
 ```
 
-So, both ends of the deferred chain have now dropped their references,
-and the deferred chain is now orphaned, and will be garbage-collected at
-some point. Note that `await_something_interesting` is a generator
-function, and when Python garbage-collects generator functions, it gives
-them a chance to clean up by making the `yield` raise a `GeneratorExit`
+So, both ends of the awaitable chain have now dropped their references,
+and the awaitable chain is now orphaned, and will be garbage-collected at
+some point. Note that `await_something_interesting` is a coroutine, 
+which Python implements as a generator function.  When Python
+garbage-collects generator functions, it gives them a chance to 
+clean up by making the `async` (or `yield`) raise a `GeneratorExit`
 exception. In our case, that means that the `__exit__` handler of
 `PreserveLoggingContext` will carefully restore the request context, but
 there is now nothing waiting for its return, so the request context is
 never cleared.
 
-To reiterate, this problem only arises when *both* ends of a deferred
-chain are dropped. Dropping the the reference to a deferred you're
-supposed to be calling is probably bad practice, so this doesn't
+To reiterate, this problem only arises when *both* ends of a awaitable
+chain are dropped. Dropping the the reference to an awaitable you're
+supposed to be awaiting is bad practice, so this doesn't
 actually happen too much. Unfortunately, when it does happen, it will
 lead to leaked logcontexts which are incredibly hard to track down.

docs/message_retention_policies.md

@@ -51,7 +51,7 @@ clients.
 
 Support for this feature can be enabled and configured in the
 `retention` section of the Synapse configuration file (see the
-[sample file](https://github.com/matrix-org/synapse/blob/v1.7.3/docs/sample_config.yaml#L332-L393)).
+[sample file](https://github.com/matrix-org/synapse/blob/v1.36.0/docs/sample_config.yaml#L451-L518)).
 
 To enable support for message retention policies, set the setting
 `enabled` in this section to `true`.
@@ -87,7 +87,7 @@ expired events from the database. They are only run if support for
 message retention policies is enabled in the server's configuration. If
 no configuration for purge jobs is configured by the server admin,
 Synapse will use a default configuration, which is described in the
-[sample configuration file](https://github.com/matrix-org/synapse/blob/master/docs/sample_config.yaml#L332-L393).
+[sample configuration file](https://github.com/matrix-org/synapse/blob/v1.36.0/docs/sample_config.yaml#L451-L518).
 
 Some server admins might want a finer control on when events are removed
 depending on an event's room's policy. This can be done by setting the

docs/metrics-howto.md

@@ -72,8 +72,7 @@
 
 ## Monitoring workers
 
-To monitor a Synapse installation using
-[workers](https://github.com/matrix-org/synapse/blob/master/docs/workers.md),
+To monitor a Synapse installation using [workers](workers.md),
 every worker needs to be monitored independently, in addition to
 the main homeserver process. This is because workers don't send
 their metrics to the main homeserver process, but expose them

docs/modules.md

@@ -0,0 +1,258 @@
+# Modules
+
+Synapse supports extending its functionality by configuring external modules.
+
+## Using modules
+
+To use a module on Synapse, add it to the `modules` section of the configuration file:
+
+```yaml
+modules:
+  - module: my_super_module.MySuperClass
+    config:
+      do_thing: true
+  - module: my_other_super_module.SomeClass
+    config: {}
+```
+
+Each module is defined by a path to a Python class as well as a configuration. This
+information for a given module should be available in the module's own documentation.
+
+**Note**: When using third-party modules, you effectively allow someone else to run
+custom code on your Synapse homeserver. Server admins are encouraged to verify the
+provenance of the modules they use on their homeserver and make sure the modules aren't
+running malicious code on their instance.
+
+Also note that we are currently in the process of migrating module interfaces to this
+system. While some interfaces might be compatible with it, others still require
+configuring modules in another part of Synapse's configuration file. Currently, only the
+spam checker interface is compatible with this new system.
+
+## Writing a module
+
+A module is a Python class that uses Synapse's module API to interact with the
+homeserver. It can register callbacks that Synapse will call on specific operations, as
+well as web resources to attach to Synapse's web server.
+
+When instantiated, a module is given its parsed configuration as well as an instance of
+the `synapse.module_api.ModuleApi` class. The configuration is a dictionary, and is
+either the output of the module's `parse_config` static method (see below), or the
+configuration associated with the module in Synapse's configuration file.
+
+See the documentation for the `ModuleApi` class
+[here](https://github.com/matrix-org/synapse/blob/master/synapse/module_api/__init__.py).
+
+### Handling the module's configuration
+
+A module can implement the following static method:
+
+```python
+@staticmethod
+def parse_config(config: dict) -> dict
+```
+
+This method is given a dictionary resulting from parsing the YAML configuration for the
+module. It may modify it (for example by parsing durations expressed as strings (e.g.
+"5d") into milliseconds, etc.), and return the modified dictionary. It may also verify
+that the configuration is correct, and raise an instance of
+`synapse.module_api.errors.ConfigError` if not.
+
+### Registering a web resource
+
+Modules can register web resources onto Synapse's web server using the following module
+API method:
+
+```python
+def ModuleApi.register_web_resource(path: str, resource: IResource)
+```
+
+The path is the full absolute path to register the resource at. For example, if you
+register a resource for the path `/_synapse/client/my_super_module/say_hello`, Synapse
+will serve it at `http(s)://[HS_URL]/_synapse/client/my_super_module/say_hello`. Note
+that Synapse does not allow registering resources for several sub-paths in the `/_matrix`
+namespace (such as anything under `/_matrix/client` for example). It is strongly
+recommended that modules register their web resources under the `/_synapse/client`
+namespace.
+
+The provided resource is a Python class that implements Twisted's [IResource](https://twistedmatrix.com/documents/current/api/twisted.web.resource.IResource.html)
+interface (such as [Resource](https://twistedmatrix.com/documents/current/api/twisted.web.resource.Resource.html)).
+
+Only one resource can be registered for a given path. If several modules attempt to
+register a resource for the same path, the module that appears first in Synapse's
+configuration file takes priority.
+
+Modules **must** register their web resources in their `__init__` method.
+
+### Registering a callback
+
+Modules can use Synapse's module API to register callbacks. Callbacks are functions that
+Synapse will call when performing specific actions. Callbacks must be asynchronous, and
+are split in categories. A single module may implement callbacks from multiple categories,
+and is under no obligation to implement all callbacks from the categories it registers
+callbacks for.
+
+#### Spam checker callbacks
+
+To register one of the callbacks described in this section, a module needs to use the
+module API's `register_spam_checker_callbacks` method. The callback functions are passed
+to `register_spam_checker_callbacks` as keyword arguments, with the callback name as the
+argument name and the function as its value. This is demonstrated in the example below.
+
+The available spam checker callbacks are:
+
+```python
+async def check_event_for_spam(event: "synapse.events.EventBase") -> Union[bool, str]
+```
+
+Called when receiving an event from a client or via federation. The module can return
+either a `bool` to indicate whether the event must be rejected because of spam, or a `str`
+to indicate the event must be rejected because of spam and to give a rejection reason to
+forward to clients.
+
+```python
+async def user_may_invite(inviter: str, invitee: str, room_id: str) -> bool
+```
+
+Called when processing an invitation. The module must return a `bool` indicating whether
+the inviter can invite the invitee to the given room. Both inviter and invitee are
+represented by their Matrix user ID (i.e. `@alice:example.com`).
+
+```python
+async def user_may_create_room(user: str) -> bool
+```
+
+Called when processing a room creation request. The module must return a `bool` indicating
+whether the given user (represented by their Matrix user ID) is allowed to create a room.
+
+```python
+async def user_may_create_room_alias(user: str, room_alias: "synapse.types.RoomAlias") -> bool
+```
+
+Called when trying to associate an alias with an existing room. The module must return a
+`bool` indicating whether the given user (represented by their Matrix user ID) is allowed
+to set the given alias.
+
+```python
+async def user_may_publish_room(user: str, room_id: str) -> bool
+```
+
+Called when trying to publish a room to the homeserver's public rooms directory. The
+module must return a `bool` indicating whether the given user (represented by their
+Matrix user ID) is allowed to publish the given room.
+
+```python
+async def check_username_for_spam(user_profile: Dict[str, str]) -> bool
+```
+
+Called when computing search results in the user directory. The module must return a
+`bool` indicating whether the given user profile can appear in search results. The profile
+is represented as a dictionary with the following keys:
+
+* `user_id`: The Matrix ID for this user.
+* `display_name`: The user's display name.
+* `avatar_url`: The `mxc://` URL to the user's avatar.
+
+The module is given a copy of the original dictionary, so modifying it from within the
+module cannot modify a user's profile when included in user directory search results.
+
+```python
+async def check_registration_for_spam(
+    email_threepid: Optional[dict],
+    username: Optional[str],
+    request_info: Collection[Tuple[str, str]],
+    auth_provider_id: Optional[str] = None,
+) -> "synapse.spam_checker_api.RegistrationBehaviour"
+```
+
+Called when registering a new user. The module must return a `RegistrationBehaviour`
+indicating whether the registration can go through or must be denied, or whether the user
+may be allowed to register but will be shadow banned.
+
+The arguments passed to this callback are:
+
+* `email_threepid`: The email address used for registering, if any.
+* `username`: The username the user would like to register. Can be `None`, meaning that
+  Synapse will generate one later.
+* `request_info`: A collection of tuples, which first item is a user agent, and which
+  second item is an IP address. These user agents and IP addresses are the ones that were
+  used during the registration process.
+* `auth_provider_id`: The identifier of the SSO authentication provider, if any.
+
+```python
+async def check_media_file_for_spam(
+    file_wrapper: "synapse.rest.media.v1.media_storage.ReadableFileWrapper",
+    file_info: "synapse.rest.media.v1._base.FileInfo"
+) -> bool
+```
+
+Called when storing a local or remote file. The module must return a boolean indicating
+whether the given file can be stored in the homeserver's media store.
+
+### Porting an existing module that uses the old interface
+
+In order to port a module that uses Synapse's old module interface, its author needs to:
+
+* ensure the module's callbacks are all asynchronous.
+* register their callbacks using one or more of the `register_[...]_callbacks` methods
+  from the `ModuleApi` class in the module's `__init__` method (see [this section](#registering-a-callback)
+  for more info).
+
+Additionally, if the module is packaged with an additional web resource, the module
+should register this resource in its `__init__` method using the `register_web_resource`
+method from the `ModuleApi` class (see [this section](#registering-a-web-resource) for
+more info).
+
+The module's author should also update any example in the module's configuration to only
+use the new `modules` section in Synapse's configuration file (see [this section](#using-modules)
+for more info).
+
+### Example
+
+The example below is a module that implements the spam checker callback
+`user_may_create_room` to deny room creation to user `@evilguy:example.com`, and registers
+a web resource to the path `/_synapse/client/demo/hello` that returns a JSON object.
+
+```python
+import json
+
+from twisted.web.resource import Resource
+from twisted.web.server import Request
+
+from synapse.module_api import ModuleApi
+
+
+class DemoResource(Resource):
+    def __init__(self, config):
+        super(DemoResource, self).__init__()
+        self.config = config
+
+    def render_GET(self, request: Request):
+        name = request.args.get(b"name")[0]
+        request.setHeader(b"Content-Type", b"application/json")
+        return json.dumps({"hello": name})
+
+
+class DemoModule:
+    def __init__(self, config: dict, api: ModuleApi):
+        self.config = config
+        self.api = api
+
+        self.api.register_web_resource(
+            path="/_synapse/client/demo/hello",
+            resource=DemoResource(self.config),
+        )
+
+        self.api.register_spam_checker_callbacks(
+            user_may_create_room=self.user_may_create_room,
+        )
+
+    @staticmethod
+    def parse_config(config):
+        return config
+
+    async def user_may_create_room(self, user: str) -> bool:
+        if user == "@evilguy:example.com":
+            return False
+
+        return True
+```

docs/postgres.md

@@ -8,14 +8,14 @@ Synapse will require the python postgres client library in order to
 connect to a postgres database.
 
 -   If you are using the [matrix.org debian/ubuntu
-    packages](../INSTALL.md#matrixorg-packages), the necessary python
+    packages](setup/installation.md#matrixorg-packages), the necessary python
     library will already be installed, but you will need to ensure the
     low-level postgres library is installed, which you can do with
     `apt install libpq5`.
 -   For other pre-built packages, please consult the documentation from
     the relevant package.
 -   If you installed synapse [in a
-    virtualenv](../INSTALL.md#installing-from-source), you can install
+    virtualenv](setup/installation.md#installing-from-source), you can install
     the library with:
 
         ~/synapse/env/bin/pip install "matrix-synapse[postgres]"

docs/presence_router_module.md

@@ -30,7 +30,7 @@ presence to (for those users that the receiving user is considered interested in
 It does not include state for users who are currently offline, and it can only be
 called on workers that support sending federation. Additionally, this method must
 only be called from the process that has been configured to write to the
-the [presence stream](https://github.com/matrix-org/synapse/blob/master/docs/workers.md#stream-writers).
+the [presence stream](workers.md#stream-writers).
 By default, this is the main process, but another worker can be configured to do
 so.
 
@@ -222,7 +222,9 @@ Synapse, amend your homeserver config file with the following.
 
 ```yaml
 presence:
-  routing_module:
+  enabled: true
+
+  presence_router:
     module: my_module.ExamplePresenceRouter
     config:
       # Any configuration options for your module. The below is an example.

docs/replication.md

@@ -28,7 +28,7 @@ minimal.
 
 ### The Replication Protocol
 
-See [tcp_replication.md](tcp_replication.md)
+See [the TCP replication documentation](tcp_replication.md).
 
 ### The Slaved DataStore
 

docs/reverse_proxy.md

@@ -21,7 +21,7 @@ port 8448. Where these are different, we refer to the 'client port' and the
 'federation port'. See [the Matrix
 specification](https://matrix.org/docs/spec/server_server/latest#resolving-server-names)
 for more details of the algorithm used for federation connections, and
-[delegate.md](<delegate.md>) for instructions on setting up delegation.
+[Delegation](delegate.md) for instructions on setting up delegation.
 
 **NOTE**: Your reverse proxy must not `canonicalise` or `normalise`
 the requested URI in any way (for example, by decoding `%xx` escapes).
@@ -98,6 +98,33 @@ example.com:8448 {
   reverse_proxy http://localhost:8008
 }
 ```
+[Delegation](delegate.md) example:
+```
+(matrix-well-known-header) {
+    # Headers
+    header Access-Control-Allow-Origin "*"
+    header Access-Control-Allow-Methods "GET, POST, PUT, DELETE, OPTIONS"
+    header Access-Control-Allow-Headers "Origin, X-Requested-With, Content-Type, Accept, Authorization"
+    header Content-Type "application/json"
+}
+
+example.com {
+    handle /.well-known/matrix/server {
+        import matrix-well-known-header
+        respond `{"m.server":"matrix.example.com:443"}`
+    }
+
+    handle /.well-known/matrix/client {
+        import matrix-well-known-header
+        respond `{"m.homeserver":{"base_url":"https://matrix.example.com"},"m.identity_server":{"base_url":"https://identity.example.com"}}`
+    }
+}
+
+matrix.example.com {
+    reverse_proxy /_matrix/* http://localhost:8008
+    reverse_proxy /_synapse/client/* http://localhost:8008
+}
+```
 
 ### Apache
 

docs/room_and_user_statistics.md

@@ -1,9 +1,9 @@
 Room and User Statistics
 ========================
 
-Synapse maintains room and user statistics (as well as a cache of room state),
-in various tables. These can be used for administrative purposes but are also
-used when generating the public room directory.
+Synapse maintains room and user statistics in various tables. These can be used
+for administrative purposes but are also used when generating the public room
+directory.
 
 
 # Synapse Developer Documentation
@@ -15,48 +15,8 @@ used when generating the public room directory.
 * **subject**: Something we are tracking stats about – currently a room or user.
 * **current row**: An entry for a subject in the appropriate current statistics
     table. Each subject can have only one.
-* **historical row**: An entry for a subject in the appropriate historical
-    statistics table. Each subject can have any number of these.
 
 ### Overview
 
-Stats are maintained as time series. There are two kinds of column:
-
-* absolute columns – where the value is correct for the time given by `end_ts`
-    in the stats row. (Imagine a line graph for these values)
-    * They can also be thought of as 'gauges' in Prometheus, if you are familiar.
-* per-slice columns – where the value corresponds to how many of the occurrences
-    occurred within the time slice given by `(end_ts − bucket_size)…end_ts`
-    or `start_ts…end_ts`. (Imagine a histogram for these values)
-
-Stats are maintained in two tables (for each type): current and historical.
-
-Current stats correspond to the present values. Each subject can only have one
-entry.
-
-Historical stats correspond to values in the past. Subjects may have multiple
-entries.
-
-## Concepts around the management of stats
-
-### Current rows
-
-Current rows contain the most up-to-date statistics for a room.
-They only contain absolute columns
-
-### Historical rows
-
-Historical rows can always be considered to be valid for the time slice and
-end time specified.
-
-* historical rows will not exist for every time slice – they will be omitted
-    if there were no changes. In this case, the following assumptions can be
-    made to interpolate/recreate missing rows:
-    - absolute fields have the same values as in the preceding row
-    - per-slice fields are zero (`0`)
-* historical rows will not be retained forever – rows older than a configurable
-    time will be purged.
-
-#### Purge
-
-The purging of historical rows is not yet implemented.
+Stats correspond to the present values. Current rows contain the most up-to-date
+statistics for a room. Each subject can only have one entry.

docs/sample_config.yaml

@@ -8,7 +8,8 @@
 #
 # It is *not* intended to be copied and used as the basis for a real
 # homeserver.yaml. Instead, if you are starting from scratch, please generate
-# a fresh config using Synapse by following the instructions in INSTALL.md.
+# a fresh config using Synapse by following the instructions in
+# https://matrix-org.github.io/synapse/latest/setup/installation.html.
 
 # Configuration options that take a time period can be set using a number
 # followed by a letter. Letters have the following meanings:
@@ -31,6 +32,22 @@
 #
 # [1] https://docs.ansible.com/ansible/latest/reference_appendices/YAMLSyntax.html
 
+
+## Modules ##
+
+# Server admins can expand Synapse's functionality with external modules.
+#
+# See https://matrix-org.github.io/synapse/latest/modules.html for more
+# documentation on how to configure or create custom modules for Synapse.
+#
+modules:
+    # - module: my_super_module.MySuperClass
+    #   config:
+    #       do_thing: true
+    # - module: my_other_super_module.SomeClass
+    #   config: {}
+
+
 ## Server ##
 
 # The public-facing domain of the server
@@ -42,7 +59,7 @@
 # In most cases you should avoid using a matrix specific subdomain such as
 # matrix.example.com or synapse.example.com as the server_name for the same
 # reasons you wouldn't use user@email.example.com as your email address.
-# See https://github.com/matrix-org/synapse/blob/master/docs/delegate.md
+# See https://matrix-org.github.io/synapse/latest/delegate.html
 # for information on how to host Synapse on a subdomain while preserving
 # a clean server_name.
 #
@@ -237,9 +254,9 @@ presence:
 #       'all local interfaces'.
 #
 #   type: the type of listener. Normally 'http', but other valid options are:
-#       'manhole' (see docs/manhole.md),
-#       'metrics' (see docs/metrics-howto.md),
-#       'replication' (see docs/workers.md).
+#       'manhole' (see https://matrix-org.github.io/synapse/latest/manhole.html),
+#       'metrics' (see https://matrix-org.github.io/synapse/latest/metrics-howto.html),
+#       'replication' (see https://matrix-org.github.io/synapse/latest/workers.html).
 #
 #   tls: set to true to enable TLS for this listener. Will use the TLS
 #       key/cert specified in tls_private_key_path / tls_certificate_path.
@@ -264,8 +281,8 @@ presence:
 #   client: the client-server API (/_matrix/client), and the synapse admin
 #       API (/_synapse/admin). Also implies 'media' and 'static'.
 #
-#   consent: user consent forms (/_matrix/consent). See
-#       docs/consent_tracking.md.
+#   consent: user consent forms (/_matrix/consent).
+#       See https://matrix-org.github.io/synapse/latest/consent_tracking.html.
 #
 #   federation: the server-server API (/_matrix/federation). Also implies
 #       'media', 'keys', 'openid'
@@ -274,12 +291,13 @@ presence:
 #
 #   media: the media API (/_matrix/media).
 #
-#   metrics: the metrics interface. See docs/metrics-howto.md.
+#   metrics: the metrics interface.
+#       See https://matrix-org.github.io/synapse/latest/metrics-howto.html.
 #
 #   openid: OpenID authentication.
 #
-#   replication: the HTTP replication API (/_synapse/replication). See
-#       docs/workers.md.
+#   replication: the HTTP replication API (/_synapse/replication).
+#       See https://matrix-org.github.io/synapse/latest/workers.html.
 #
 #   static: static resources under synapse/static (/_matrix/static). (Mostly
 #       useful for 'fallback authentication'.)
@@ -303,7 +321,7 @@ listeners:
   # that unwraps TLS.
   #
   # If you plan to use a reverse proxy, please see
-  # https://github.com/matrix-org/synapse/blob/master/docs/reverse_proxy.md.
+  # https://matrix-org.github.io/synapse/latest/reverse_proxy.html.
   #
   - port: 8008
     tls: false
@@ -552,13 +570,9 @@ retention:
 # This certificate, as of Synapse 1.0, will need to be a valid and verifiable
 # certificate, signed by a recognised Certificate Authority.
 #
-# See 'ACME support' below to enable auto-provisioning this certificate via
-# Let's Encrypt.
-#
-# If supplying your own, be sure to use a `.pem` file that includes the
-# full certificate chain including any intermediate certificates (for
-# instance, if using certbot, use `fullchain.pem` as your certificate,
-# not `cert.pem`).
+# Be sure to use a `.pem` file that includes the full certificate chain including
+# any intermediate certificates (for instance, if using certbot, use
+# `fullchain.pem` as your certificate, not `cert.pem`).
 #
 #tls_certificate_path: "CONFDIR/SERVERNAME.tls.crt"
 
@@ -609,80 +623,6 @@ retention:
 #  - myCA2.pem
 #  - myCA3.pem
 
-# ACME support: This will configure Synapse to request a valid TLS certificate
-# for your configured `server_name` via Let's Encrypt.
-#
-# Note that ACME v1 is now deprecated, and Synapse currently doesn't support
-# ACME v2. This means that this feature currently won't work with installs set
-# up after November 2019. For more info, and alternative solutions, see
-# https://github.com/matrix-org/synapse/blob/master/docs/ACME.md#deprecation-of-acme-v1
-#
-# Note that provisioning a certificate in this way requires port 80 to be
-# routed to Synapse so that it can complete the http-01 ACME challenge.
-# By default, if you enable ACME support, Synapse will attempt to listen on
-# port 80 for incoming http-01 challenges - however, this will likely fail
-# with 'Permission denied' or a similar error.
-#
-# There are a couple of potential solutions to this:
-#
-#  * If you already have an Apache, Nginx, or similar listening on port 80,
-#    you can configure Synapse to use an alternate port, and have your web
-#    server forward the requests. For example, assuming you set 'port: 8009'
-#    below, on Apache, you would write:
-#
-#    ProxyPass /.well-known/acme-challenge http://localhost:8009/.well-known/acme-challenge
-#
-#  * Alternatively, you can use something like `authbind` to give Synapse
-#    permission to listen on port 80.
-#
-acme:
-    # ACME support is disabled by default. Set this to `true` and uncomment
-    # tls_certificate_path and tls_private_key_path above to enable it.
-    #
-    enabled: false
-
-    # Endpoint to use to request certificates. If you only want to test,
-    # use Let's Encrypt's staging url:
-    #     https://acme-staging.api.letsencrypt.org/directory
-    #
-    #url: https://acme-v01.api.letsencrypt.org/directory
-
-    # Port number to listen on for the HTTP-01 challenge. Change this if
-    # you are forwarding connections through Apache/Nginx/etc.
-    #
-    port: 80
-
-    # Local addresses to listen on for incoming connections.
-    # Again, you may want to change this if you are forwarding connections
-    # through Apache/Nginx/etc.
-    #
-    bind_addresses: ['::', '0.0.0.0']
-
-    # How many days remaining on a certificate before it is renewed.
-    #
-    reprovision_threshold: 30
-
-    # The domain that the certificate should be for. Normally this
-    # should be the same as your Matrix domain (i.e., 'server_name'), but,
-    # by putting a file at 'https://<server_name>/.well-known/matrix/server',
-    # you can delegate incoming traffic to another server. If you do that,
-    # you should give the target of the delegation here.
-    #
-    # For example: if your 'server_name' is 'example.com', but
-    # 'https://example.com/.well-known/matrix/server' delegates to
-    # 'matrix.example.com', you should put 'matrix.example.com' here.
-    #
-    # If not set, defaults to your 'server_name'.
-    #
-    domain: matrix.example.com
-
-    # file to use for the account key. This will be generated if it doesn't
-    # exist.
-    #
-    # If unspecified, we will use CONFDIR/client.key.
-    #
-    account_key_file: DATADIR/acme_account.key
-
 
 ## Federation ##
 
@@ -735,35 +675,41 @@ acme:
 #event_cache_size: 10K
 
 caches:
-   # Controls the global cache factor, which is the default cache factor
-   # for all caches if a specific factor for that cache is not otherwise
-   # set.
-   #
-   # This can also be set by the "SYNAPSE_CACHE_FACTOR" environment
-   # variable. Setting by environment variable takes priority over
-   # setting through the config file.
-   #
-   # Defaults to 0.5, which will half the size of all caches.
-   #
-   #global_factor: 1.0
+  # Controls the global cache factor, which is the default cache factor
+  # for all caches if a specific factor for that cache is not otherwise
+  # set.
+  #
+  # This can also be set by the "SYNAPSE_CACHE_FACTOR" environment
+  # variable. Setting by environment variable takes priority over
+  # setting through the config file.
+  #
+  # Defaults to 0.5, which will half the size of all caches.
+  #
+  #global_factor: 1.0
 
-   # A dictionary of cache name to cache factor for that individual
-   # cache. Overrides the global cache factor for a given cache.
-   #
-   # These can also be set through environment variables comprised
-   # of "SYNAPSE_CACHE_FACTOR_" + the name of the cache in capital
-   # letters and underscores. Setting by environment variable
-   # takes priority over setting through the config file.
-   # Ex. SYNAPSE_CACHE_FACTOR_GET_USERS_WHO_SHARE_ROOM_WITH_USER=2.0
-   #
-   # Some caches have '*' and other characters that are not
-   # alphanumeric or underscores. These caches can be named with or
-   # without the special characters stripped. For example, to specify
-   # the cache factor for `*stateGroupCache*` via an environment
-   # variable would be `SYNAPSE_CACHE_FACTOR_STATEGROUPCACHE=2.0`.
-   #
-   per_cache_factors:
-     #get_users_who_share_room_with_user: 2.0
+  # A dictionary of cache name to cache factor for that individual
+  # cache. Overrides the global cache factor for a given cache.
+  #
+  # These can also be set through environment variables comprised
+  # of "SYNAPSE_CACHE_FACTOR_" + the name of the cache in capital
+  # letters and underscores. Setting by environment variable
+  # takes priority over setting through the config file.
+  # Ex. SYNAPSE_CACHE_FACTOR_GET_USERS_WHO_SHARE_ROOM_WITH_USER=2.0
+  #
+  # Some caches have '*' and other characters that are not
+  # alphanumeric or underscores. These caches can be named with or
+  # without the special characters stripped. For example, to specify
+  # the cache factor for `*stateGroupCache*` via an environment
+  # variable would be `SYNAPSE_CACHE_FACTOR_STATEGROUPCACHE=2.0`.
+  #
+  per_cache_factors:
+    #get_users_who_share_room_with_user: 2.0
+
+  # Controls how long an entry can be in a cache without having been
+  # accessed before being evicted. Defaults to None, which means
+  # entries are never evicted based on time.
+  #
+  #expiry_time: 30m
 
 
 ## Database ##
@@ -803,7 +749,8 @@ caches:
 #    cp_min: 5
 #    cp_max: 10
 #
-# For more information on using Synapse with Postgres, see `docs/postgres.md`.
+# For more information on using Synapse with Postgres,
+# see https://matrix-org.github.io/synapse/latest/postgres.html.
 #
 database:
   name: sqlite3
@@ -954,6 +901,10 @@ media_store_path: "DATADIR/media_store"
 
 # The largest allowed upload size in bytes
 #
+# If you are using a reverse proxy you may also need to set this value in
+# your reverse proxy's config. Notably Nginx has a small max body size by default.
+# See https://matrix-org.github.io/synapse/latest/reverse_proxy.html.
+#
 #max_upload_size: 50M
 
 # Maximum number of pixels that will be thumbnailed
@@ -1892,7 +1843,7 @@ saml2_config:
 #
 #       module: The class name of a custom mapping module. Default is
 #           'synapse.handlers.oidc.JinjaOidcMappingProvider'.
-#           See https://github.com/matrix-org/synapse/blob/master/docs/sso_mapping_providers.md#openid-mapping-providers
+#           See https://matrix-org.github.io/synapse/latest/sso_mapping_providers.html#openid-mapping-providers
 #           for information on implementing a custom mapping provider.
 #
 #       config: Configuration for the mapping provider module. This section will
@@ -1943,7 +1894,7 @@ saml2_config:
 #     - attribute: groups
 #       value: "admin"
 #
-# See https://github.com/matrix-org/synapse/blob/master/docs/openid.md
+# See https://matrix-org.github.io/synapse/latest/openid.html
 # for information on how to configure these options.
 #
 # For backwards compatibility, it is also possible to configure a single OIDC
@@ -2033,6 +1984,17 @@ sso:
     #  - https://riot.im/develop
     #  - https://my.custom.client/
 
+    # Uncomment to keep a user's profile fields in sync with information from
+    # the identity provider. Currently only syncing the displayname is
+    # supported. Fields are checked on every SSO login, and are updated
+    # if necessary.
+    #
+    # Note that enabling this option will override user profile information,
+    # regardless of whether users have opted-out of syncing that
+    # information when first signing in. Defaults to false.
+    #
+    #update_profile_information: true
+
     # Directory in which Synapse will try to find the template files below.
     # If not set, or the files named below are not found within the template
     # directory, default templates from within the Synapse package will be used.
@@ -2210,7 +2172,7 @@ sso:
 # Note that this is a non-standard login type and client support is
 # expected to be non-existent.
 #
-# See https://github.com/matrix-org/synapse/blob/master/docs/jwt.md.
+# See https://matrix-org.github.io/synapse/latest/jwt.html.
 #
 #jwt_config:
     # Uncomment the following to enable authorization using JSON web
@@ -2314,6 +2276,10 @@ ui_auth:
     # the user-interactive authentication process, by allowing for multiple
     # (and potentially different) operations to use the same validation session.
     #
+    # This is ignored for potentially "dangerous" operations (including
+    # deactivating an account, modifying an account password, and
+    # adding a 3PID).
+    #
     # Uncomment below to allow for credential validation to last for 15
     # seconds.
     #
@@ -2506,7 +2472,7 @@ email:
 # ex. LDAP, external tokens, etc.
 #
 # For more information and known implementations, please see
-# https://github.com/matrix-org/synapse/blob/master/docs/password_auth_providers.md
+# https://matrix-org.github.io/synapse/latest/password_auth_providers.html
 #
 # Note: instances wishing to use SAML or CAS authentication should
 # instead use the `saml2_config` or `cas_config` options,
@@ -2561,19 +2527,6 @@ push:
   #group_unread_count_by_room: false
 
 
-# Spam checkers are third-party modules that can block specific actions
-# of local users, such as creating rooms and registering undesirable
-# usernames, as well as remote users by redacting incoming events.
-#
-spam_checker:
-   #- module: "my_custom_project.SuperSpamChecker"
-   #  config:
-   #    example_option: 'things'
-   #- module: "some_other_project.BadEventStopper"
-   #  config:
-   #    example_stop_events_from: ['@bad:example.com']
-
-
 ## Rooms ##
 
 # Controls whether locally-created rooms should be end-to-end encrypted by
@@ -2621,7 +2574,7 @@ user_directory:
     #
     # If you set it true, you'll have to rebuild the user_directory search
     # indexes, see:
-    # https://github.com/matrix-org/synapse/blob/master/docs/user_directory.md
+    # https://matrix-org.github.io/synapse/latest/user_directory.html
     #
     # Uncomment to return search results containing all known users, even if that
     # user does not share a room with the requester.
@@ -2641,7 +2594,7 @@ user_directory:
 # User Consent configuration
 #
 # for detailed instructions, see
-# https://github.com/matrix-org/synapse/blob/master/docs/consent_tracking.md
+# https://matrix-org.github.io/synapse/latest/consent_tracking.html
 #
 # Parts of this section are required if enabling the 'consent' resource under
 # 'listeners', in particular 'template_dir' and 'version'.
@@ -2691,7 +2644,7 @@ user_directory:
 
 
 # Settings for local room and user statistics collection. See
-# docs/room_and_user_statistics.md.
+# https://matrix-org.github.io/synapse/latest/room_and_user_statistics.html.
 #
 stats:
   # Uncomment the following to disable room and user statistics. Note that doing
@@ -2700,11 +2653,6 @@ stats:
   #
   #enabled: false
 
-  # The size of each timeslice in the room_stats_historical and
-  # user_stats_historical tables, as a time period. Defaults to "1d".
-  #
-  #bucket_size: 1h
-
 
 # Server Notices room configuration
 #
@@ -2818,7 +2766,7 @@ opentracing:
     #enabled: true
 
     # The list of homeservers we wish to send and receive span contexts and span baggage.
-    # See docs/opentracing.rst.
+    # See https://matrix-org.github.io/synapse/latest/opentracing.html.
     #
     # This is a list of regexes which are matched against the server_name of the
     # homeserver.

docs/sample_log_config.yaml

@@ -7,7 +7,7 @@
 # be ingested by ELK stacks. See [2] for details.
 #
 # [1]: https://docs.python.org/3.7/library/logging.config.html#configuration-dictionary-schema
-# [2]: https://github.com/matrix-org/synapse/blob/master/docs/structured_logging.md
+# [2]: https://matrix-org.github.io/synapse/latest/structured_logging.html
 
 version: 1