Lower fetch bound further

.ci/before_build_wheel.sh

@@ -1,10 +0,0 @@
-#!/bin/sh
-set -xeu
-
-# On 32-bit Linux platforms, we need libatomic1 to use rustup
-if command -v yum &> /dev/null; then
-   yum install -y libatomic
-fi
-
-# Install a Rust toolchain
-curl https://sh.rustup.rs -sSf | sh -s -- --default-toolchain 1.82.0 -y --profile minimal

.ci/scripts/calculate_jobs.py

@@ -60,7 +60,7 @@ trial_postgres_tests = [
     {
         "python-version": "3.9",
         "database": "postgres",
-        "postgres-version": "13",
+        "postgres-version": "11",
         "extras": "all",
     }
 ]

.ci/scripts/check_lockfile.py

@@ -11,12 +11,12 @@ with open("poetry.lock", "rb") as f:
 
 try:
     lock_version = lockfile["metadata"]["lock-version"]
-    assert lock_version == "2.1"
+    assert lock_version == "2.0"
 except Exception:
     print(
         """\
-    Lockfile is not version 2.1. You probably need to upgrade poetry on your local box
-    and re-run `poetry lock`. See the Poetry cheat sheet at
+    Lockfile is not version 2.0. You probably need to upgrade poetry on your local box
+    and re-run `poetry lock --no-update`. See the Poetry cheat sheet at
     https://element-hq.github.io/synapse/develop/development/dependencies.html
     """
     )

.github/PULL_REQUEST_TEMPLATE.md

@@ -9,4 +9,5 @@
   - End with either a period (.) or an exclamation mark (!).
   - Start with a capital letter.
   - Feel free to credit yourself, by adding a sentence "Contributed by @github_username." or "Contributed by [Your Name]." to the end of the entry.
-* [ ] [Code style](https://element-hq.github.io/synapse/latest/code_style.html) is correct (run the [linters](https://element-hq.github.io/synapse/latest/development/contributing_guide.html#run-the-linters))
+* [ ] [Code style](https://element-hq.github.io/synapse/latest/code_style.html) is correct
+  (run the [linters](https://element-hq.github.io/synapse/latest/development/contributing_guide.html#run-the-linters))

.github/workflows/docker.yml

@@ -5,7 +5,7 @@ name: Build docker images
 on:
   push:
     tags: ["v*"]
-    branches: [master, main, develop]
+    branches: [ master, main, develop ]
   workflow_dispatch:
 
 permissions:
@@ -14,24 +14,26 @@ permissions:
   id-token: write # needed for signing the images with GitHub OIDC Token
 jobs:
   build:
-    name: Build and push image for ${{ matrix.platform }}
-    runs-on: ${{ matrix.runs_on }}
-    strategy:
-      matrix:
-        include:
-          - platform: linux/amd64
-            runs_on: ubuntu-24.04
-            suffix: linux-amd64
-          - platform: linux/arm64
-            runs_on: ubuntu-24.04-arm
-            suffix: linux-arm64
+    runs-on: ubuntu-latest
     steps:
+      - name: Set up QEMU
+        id: qemu
+        uses: docker/setup-qemu-action@v3
+        with:
+          platforms: arm64
+
       - name: Set up Docker Buildx
         id: buildx
-        uses: docker/setup-buildx-action@e468171a9de216ec08956ac3ada2f0791b6bd435 # v3.11.1
+        uses: docker/setup-buildx-action@v3
+
+      - name: Inspect builder
+        run: docker buildx inspect
+
+      - name: Install Cosign
+        uses: sigstore/cosign-installer@v3.7.0
 
       - name: Checkout repository
-        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+        uses: actions/checkout@v4
 
       - name: Extract version from pyproject.toml
         # Note: explicitly requesting bash will mean bash is invoked with `-eo pipefail`, see
@@ -41,91 +43,25 @@ jobs:
           echo "SYNAPSE_VERSION=$(grep "^version" pyproject.toml | sed -E 's/version\s*=\s*["]([^"]*)["]/\1/')" >> $GITHUB_ENV
 
       - name: Log in to DockerHub
-        uses: docker/login-action@74a5d142397b4f367a81961eba4e8cd7edddf772 # v3.4.0
+        uses: docker/login-action@v3
         with:
           username: ${{ secrets.DOCKERHUB_USERNAME }}
           password: ${{ secrets.DOCKERHUB_TOKEN }}
 
       - name: Log in to GHCR
-        uses: docker/login-action@74a5d142397b4f367a81961eba4e8cd7edddf772 # v3.4.0
+        uses: docker/login-action@v3
         with:
           registry: ghcr.io
           username: ${{ github.repository_owner }}
           password: ${{ secrets.GITHUB_TOKEN }}
 
-      - name: Build and push by digest
-        id: build
-        uses: docker/build-push-action@263435318d21b8e681c14492fe198d362a7d2c83 # v6.18.0
-        with:
-          push: true
-          labels: |
-            gitsha1=${{ github.sha }}
-            org.opencontainers.image.version=${{ env.SYNAPSE_VERSION }}
-          tags: |
-            docker.io/matrixdotorg/synapse
-            ghcr.io/element-hq/synapse
-          file: "docker/Dockerfile"
-          platforms: ${{ matrix.platform }}
-          outputs: type=image,push-by-digest=true,name-canonical=true,push=true
-
-      - name: Export digest
-        run: |
-          mkdir -p ${{ runner.temp }}/digests
-          digest="${{ steps.build.outputs.digest }}"
-          touch "${{ runner.temp }}/digests/${digest#sha256:}"
-
-      - name: Upload digest
-        uses: actions/upload-artifact@v4
-        with:
-          name: digests-${{ matrix.suffix }}
-          path: ${{ runner.temp }}/digests/*
-          if-no-files-found: error
-          retention-days: 1
-
-  merge:
-    name: Push merged images to ${{ matrix.repository }}
-    runs-on: ubuntu-latest
-    strategy:
-      matrix:
-        repository:
-          - docker.io/matrixdotorg/synapse
-          - ghcr.io/element-hq/synapse
-
-    needs:
-      - build
-    steps:
-      - name: Download digests
-        uses: actions/download-artifact@d3f86a106a0bac45b974a628896c90dbdf5c8093 # v4.3.0
-        with:
-          path: ${{ runner.temp }}/digests
-          pattern: digests-*
-          merge-multiple: true
-
-      - name: Log in to DockerHub
-        uses: docker/login-action@74a5d142397b4f367a81961eba4e8cd7edddf772 # v3.4.0
-        if: ${{ startsWith(matrix.repository, 'docker.io') }}
-        with:
-          username: ${{ secrets.DOCKERHUB_USERNAME }}
-          password: ${{ secrets.DOCKERHUB_TOKEN }}
-
-      - name: Log in to GHCR
-        uses: docker/login-action@74a5d142397b4f367a81961eba4e8cd7edddf772 # v3.4.0
-        if: ${{ startsWith(matrix.repository, 'ghcr.io') }}
-        with:
-          registry: ghcr.io
-          username: ${{ github.repository_owner }}
-          password: ${{ secrets.GITHUB_TOKEN }}
-
-      - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@e468171a9de216ec08956ac3ada2f0791b6bd435 # v3.11.1
-
-      - name: Install Cosign
-        uses: sigstore/cosign-installer@d58896d6a1865668819e1d91763c7751a165e159 # v3.9.2
-
       - name: Calculate docker image tag
-        uses: docker/metadata-action@902fa8ec7d6ecbf8d84d538b9b233a880e428804 # v5.7.0
+        id: set-tag
+        uses: docker/metadata-action@master
         with:
-          images: ${{ matrix.repository }}
+          images: |
+            docker.io/matrixdotorg/synapse
+            ghcr.io/element-hq/synapse
           flavor: |
             latest=false
           tags: |
@@ -133,23 +69,31 @@ jobs:
             type=raw,value=latest,enable=${{ github.ref == 'refs/heads/master' }}
             type=raw,value=latest,enable=${{ github.ref == 'refs/heads/main' }}
             type=pep440,pattern={{raw}}
-            type=sha
 
-      - name: Create manifest list and push
-        working-directory: ${{ runner.temp }}/digests
-        env:
-          REPOSITORY: ${{ matrix.repository }}
-        run: |
-          docker buildx imagetools create $(jq -cr '.tags | map("-t " + .) | join(" ")' <<< "$DOCKER_METADATA_OUTPUT_JSON") \
-            $(printf "$REPOSITORY@sha256:%s " *)
+      - name: Build and push all platforms
+        id: build-and-push
+        uses: docker/build-push-action@v6
+        with:
+          push: true
+          labels: |
+            gitsha1=${{ github.sha }}
+            org.opencontainers.image.version=${{ env.SYNAPSE_VERSION }}
+          tags: "${{ steps.set-tag.outputs.tags }}"
+          file: "docker/Dockerfile"
+          platforms: linux/amd64,linux/arm64
 
-      - name: Sign each manifest
+          # arm64 builds OOM without the git fetch setting. c.f.
+          # https://github.com/rust-lang/cargo/issues/10583
+          build-args: |
+            CARGO_NET_GIT_FETCH_WITH_CLI=true
+
+      - name: Sign the images with GitHub OIDC Token
         env:
-          REPOSITORY: ${{ matrix.repository }}
+          DIGEST: ${{ steps.build-and-push.outputs.digest }}
+          TAGS: ${{ steps.set-tag.outputs.tags }}
         run: |
-          DIGESTS=""
-          for TAG in $(echo "$DOCKER_METADATA_OUTPUT_JSON" | jq -r '.tags[]'); do
-            DIGEST="$(docker buildx imagetools inspect $TAG --format '{{json .Manifest}}' | jq -r '.digest')"
-            DIGESTS="$DIGESTS $REPOSITORY@$DIGEST"
+          images=""
+          for tag in ${TAGS}; do
+            images+="${tag}@${DIGEST} "
           done
-          cosign sign --yes $DIGESTS
+          cosign sign --yes ${images}

.github/workflows/docs-pr-netlify.yaml

@@ -14,7 +14,7 @@ jobs:
       # There's a 'download artifact' action, but it hasn't been updated for the workflow_run action
       # (https://github.com/actions/download-artifact/issues/60) so instead we get this mess:
       - name: 📥 Download artifact
-        uses: dawidd6/action-download-artifact@ac66b43f0e6a346234dd65d4d0c8fbb31cb316e5 # v11
+        uses: dawidd6/action-download-artifact@bf251b5aa9c2f7eeb574a96ee720e24f801b7c11 # v6
         with:
           workflow: docs-pr.yaml
           run_id: ${{ github.event.workflow_run.id }}
@@ -22,7 +22,7 @@ jobs:
           path: book
 
       - name: 📤 Deploy to Netlify
-        uses: matrix-org/netlify-pr-preview@9805cd123fc9a7e421e35340a05e1ebc5dee46b5 # v3
+        uses: matrix-org/netlify-pr-preview@v3
         with:
           path: book
           owner: ${{ github.event.workflow_run.head_repository.owner.login }}

.github/workflows/docs-pr.yaml

@@ -13,7 +13,7 @@ jobs:
     name: GitHub Pages
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+      - uses: actions/checkout@v4
         with:
           # Fetch all history so that the schema_versions script works.
           fetch-depth: 0
@@ -24,7 +24,7 @@ jobs:
           mdbook-version: '0.4.17'
 
       - name: Setup python
-        uses: actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065 # v5.6.0
+        uses: actions/setup-python@v5
         with:
           python-version: "3.x"
 
@@ -39,7 +39,7 @@ jobs:
           cp book/welcome_and_overview.html book/index.html
 
       - name: Upload Artifact
-        uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4.6.2
+        uses: actions/upload-artifact@v4
         with:
           name: book
           path: book
@@ -50,7 +50,7 @@ jobs:
     name: Check links in documentation
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+      - uses: actions/checkout@v4
 
       - name: Setup mdbook
         uses: peaceiris/actions-mdbook@ee69d230fe19748b7abf22df32acaa93833fad08 # v2.0.0

.github/workflows/docs.yaml

@@ -50,7 +50,7 @@ jobs:
     needs:
       - pre
     steps:
-      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+      - uses: actions/checkout@v4
         with:
           # Fetch all history so that the schema_versions script works.
           fetch-depth: 0
@@ -64,7 +64,7 @@ jobs:
         run: echo 'window.SYNAPSE_VERSION = "${{ needs.pre.outputs.branch-version }}";' > ./docs/website_files/version.js
 
       - name: Setup python
-        uses: actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065 # v5.6.0
+        uses: actions/setup-python@v5
         with:
           python-version: "3.x"
 
@@ -78,18 +78,6 @@ jobs:
           mdbook build
           cp book/welcome_and_overview.html book/index.html
 
-      - name: Prepare and publish schema files
-        run: |
-          sudo apt-get update && sudo apt-get install -y yq
-          mkdir -p book/schema
-          # Remove developer notice before publishing.
-          rm schema/v*/Do\ not\ edit\ files\ in\ this\ folder
-          # Copy schema files that are independent from current Synapse version.
-          cp -r -t book/schema schema/v*/
-          # Convert config schema from YAML source file to JSON.
-          yq < schema/synapse-config.schema.yaml \
-            > book/schema/synapse-config.schema.json
-
       # Deploy to the target directory.
       - name: Deploy to gh pages
         uses: peaceiris/actions-gh-pages@4f9cc6602d3f66b9c108549d475ec49e8ef4d45e # v4.0.0

.github/workflows/fix_lint.yaml

@@ -6,11 +6,6 @@ name: Attempt to automatically fix linting errors
 on:
   workflow_dispatch:
 
-env:
-  # We use nightly so that `fmt` correctly groups together imports, and
-  # clippy correctly fixes up the benchmarks.
-  RUST_VERSION: nightly-2025-06-24
-
 jobs:
   fixup:
     name: Fix up
@@ -18,20 +13,21 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+        uses: actions/checkout@v4
 
       - name: Install Rust
-        uses: dtolnay/rust-toolchain@b3b07ba8b418998c39fb20f53e8b695cdcc8de1b # master
+        uses: dtolnay/rust-toolchain@master
         with:
-          toolchain: ${{ env.RUST_VERSION }}
-          components: clippy, rustfmt
-      - uses: Swatinem/rust-cache@98c8021b550208e191a6a3145459bfc9fb29c4c0 # v2.8.0
+          # We use nightly so that `fmt` correctly groups together imports, and
+          # clippy correctly fixes up the benchmarks.
+          toolchain: nightly-2022-12-01
+          components: rustfmt
+      - uses: Swatinem/rust-cache@v2
 
       - name: Setup Poetry
-        uses: matrix-org/setup-python-poetry@5bbf6603c5c930615ec8a29f1b5d7d258d905aa4 # v2.0.0
+        uses: matrix-org/setup-python-poetry@v1
         with:
           install-project: "false"
-          poetry-version: "2.1.1"
 
       - name: Run ruff check
         continue-on-error: true
@@ -47,6 +43,6 @@ jobs:
       - run: cargo fmt
         continue-on-error: true
 
-      - uses: stefanzweifel/git-auto-commit-action@778341af668090896ca464160c2def5d1d1a3eb0 # v6.0.1
+      - uses: stefanzweifel/git-auto-commit-action@v5
         with:
           commit_message: "Attempt to fix linting"

.github/workflows/latest_deps.yml

@@ -21,9 +21,6 @@ concurrency:
   group: ${{ github.workflow }}-${{ github.ref }}
   cancel-in-progress: true
 
-env:
-  RUST_VERSION: 1.87.0
-
 jobs:
   check_repo:
     # Prevent this workflow from running on any fork of Synapse other than element-hq/synapse, as it is
@@ -42,25 +39,23 @@ jobs:
     if: needs.check_repo.outputs.should_run_workflow == 'true'
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+      - uses: actions/checkout@v4
       - name: Install Rust
-        uses: dtolnay/rust-toolchain@b3b07ba8b418998c39fb20f53e8b695cdcc8de1b # master
-        with:
-          toolchain: ${{ env.RUST_VERSION }}
-      - uses: Swatinem/rust-cache@98c8021b550208e191a6a3145459bfc9fb29c4c0 # v2.8.0
+        uses: dtolnay/rust-toolchain@stable
+      - uses: Swatinem/rust-cache@v2
 
       # The dev dependencies aren't exposed in the wheel metadata (at least with current
       # poetry-core versions), so we install with poetry.
-      - uses: matrix-org/setup-python-poetry@5bbf6603c5c930615ec8a29f1b5d7d258d905aa4 # v2.0.0
+      - uses: matrix-org/setup-python-poetry@v1
         with:
           python-version: "3.x"
-          poetry-version: "2.1.1"
+          poetry-version: "1.3.2"
           extras: "all"
       # Dump installed versions for debugging.
       - run: poetry run pip list > before.txt
       # Upgrade all runtime dependencies only. This is intended to mimic a fresh
       # `pip install matrix-synapse[all]` as closely as possible.
-      - run: poetry update --without dev
+      - run: poetry update --no-dev
       - run: poetry run pip list > after.txt && (diff -u before.txt after.txt || true)
       - name: Remove unhelpful options from mypy config
         run: sed -e '/warn_unused_ignores = True/d' -e '/warn_redundant_casts = True/d' -i mypy.ini
@@ -77,13 +72,11 @@ jobs:
             postgres-version: "14"
 
     steps:
-      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+      - uses: actions/checkout@v4
 
       - name: Install Rust
-        uses: dtolnay/rust-toolchain@b3b07ba8b418998c39fb20f53e8b695cdcc8de1b # master
-        with:
-          toolchain: ${{ env.RUST_VERSION }}
-      - uses: Swatinem/rust-cache@98c8021b550208e191a6a3145459bfc9fb29c4c0 # v2.8.0
+        uses: dtolnay/rust-toolchain@stable
+      - uses: Swatinem/rust-cache@v2
 
       - run: sudo apt-get -qq install xmlsec1
       - name: Set up PostgreSQL ${{ matrix.postgres-version }}
@@ -93,7 +86,7 @@ jobs:
             -e POSTGRES_PASSWORD=postgres \
             -e POSTGRES_INITDB_ARGS="--lc-collate C --lc-ctype C --encoding UTF8" \
             postgres:${{ matrix.postgres-version }}
-      - uses: actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065 # v5.6.0
+      - uses: actions/setup-python@v5
         with:
           python-version: "3.x"
       - run: pip install .[all,test]
@@ -152,13 +145,11 @@ jobs:
       BLACKLIST: ${{ matrix.workers && 'synapse-blacklist-with-workers' }}
 
     steps:
-      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+      - uses: actions/checkout@v4
 
       - name: Install Rust
-        uses: dtolnay/rust-toolchain@b3b07ba8b418998c39fb20f53e8b695cdcc8de1b # master
-        with:
-          toolchain: ${{ env.RUST_VERSION }}
-      - uses: Swatinem/rust-cache@98c8021b550208e191a6a3145459bfc9fb29c4c0 # v2.8.0
+        uses: dtolnay/rust-toolchain@stable
+      - uses: Swatinem/rust-cache@v2
 
       - name: Ensure sytest runs `pip install`
         # Delete the lockfile so sytest will `pip install` rather than `poetry install`
@@ -173,7 +164,7 @@ jobs:
         if: ${{ always() }}
         run: /sytest/scripts/tap_to_gha.pl /logs/results.tap
       - name: Upload SyTest logs
-        uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4.6.2
+        uses: actions/upload-artifact@v4
         if: ${{ always() }}
         with:
           name: Sytest Logs - ${{ job.status }} - (${{ join(matrix.*, ', ') }})
@@ -201,15 +192,15 @@ jobs:
             database: Postgres
 
     steps:
-      - name: Check out synapse codebase
-        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+      - name: Run actions/checkout@v4 for synapse
+        uses: actions/checkout@v4
         with:
           path: synapse
 
       - name: Prepare Complement's Prerequisites
         run: synapse/.ci/scripts/setup_complement_prerequisites.sh
 
-      - uses: actions/setup-go@d35c59abb061a4a6fb18e82ac0862c26744d6ab5 # v5.5.0
+      - uses: actions/setup-go@v5
         with:
           cache-dependency-path: complement/go.sum
           go-version-file: complement/go.mod
@@ -234,7 +225,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+      - uses: actions/checkout@v4
       - uses: JasonEtco/create-an-issue@1b14a70e4d8dc185e5cc76d3bec9eab20257b2c5 # v2.9.2
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

.github/workflows/poetry_lockfile.yaml

@@ -16,8 +16,8 @@ jobs:
     name: "Check locked dependencies have sdists"
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
-      - uses: actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065 # v5.6.0
+      - uses: actions/checkout@v4
+      - uses: actions/setup-python@v5
         with:
           python-version: '3.x'
       - run: pip install tomli

.github/workflows/push_complement_image.yml

@@ -33,29 +33,29 @@ jobs:
       packages: write
     steps:
       - name: Checkout specific branch (debug build)
-        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+        uses: actions/checkout@v4
         if: github.event_name == 'workflow_dispatch'
         with:
           ref: ${{ inputs.branch }}
       - name: Checkout clean copy of develop (scheduled build)
-        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+        uses: actions/checkout@v4
         if: github.event_name == 'schedule'
         with:
           ref: develop
       - name: Checkout clean copy of master (on-push)
-        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+        uses: actions/checkout@v4
         if: github.event_name == 'push'
         with:
           ref: master
       - name: Login to registry
-        uses: docker/login-action@74a5d142397b4f367a81961eba4e8cd7edddf772 # v3.4.0
+        uses: docker/login-action@v3
         with:
           registry: ghcr.io
           username: ${{ github.actor }}
           password: ${{ secrets.GITHUB_TOKEN }}
       - name: Work out labels for complement image
         id: meta
-        uses: docker/metadata-action@902fa8ec7d6ecbf8d84d538b9b233a880e428804 # v5.7.0
+        uses: docker/metadata-action@v5
         with:
           images: ghcr.io/${{ github.repository }}/complement-synapse
           tags: |

.github/workflows/release-artifacts.yml

@@ -27,10 +27,10 @@ jobs:
     name: "Calculate list of debian distros"
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
-      - uses: actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065 # v5.6.0
+      - uses: actions/checkout@v4
+      - uses: actions/setup-python@v5
         with:
-          python-version: "3.x"
+          python-version: '3.x'
       - id: set-distros
         run: |
           # if we're running from a tag, get the full list of distros; otherwise just use debian:sid
@@ -55,18 +55,18 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+        uses: actions/checkout@v4
         with:
           path: src
 
       - name: Set up Docker Buildx
         id: buildx
-        uses: docker/setup-buildx-action@e468171a9de216ec08956ac3ada2f0791b6bd435 # v3.11.1
+        uses: docker/setup-buildx-action@v3
         with:
           install: true
 
       - name: Set up docker layer caching
-        uses: actions/cache@5a3ec84eff668545956fd18022155c47e93e2684 # v4.2.3
+        uses: actions/cache@v4
         with:
           path: /tmp/.buildx-cache
           key: ${{ runner.os }}-buildx-${{ github.sha }}
@@ -74,9 +74,9 @@ jobs:
             ${{ runner.os }}-buildx-
 
       - name: Set up python
-        uses: actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065 # v5.6.0
+        uses: actions/setup-python@v5
         with:
-          python-version: "3.x"
+          python-version: '3.x'
 
       - name: Build the packages
         # see https://github.com/docker/build-push-action/issues/252
@@ -91,31 +91,19 @@ jobs:
           rm -rf /tmp/.buildx-cache
           mv /tmp/.buildx-cache-new /tmp/.buildx-cache
 
-      - name: Artifact name
-        id: artifact-name
-        # We can't have colons in the upload name of the artifact, so we convert
-        # e.g. `debian:sid` to `sid`.
-        env:
-          DISTRO: ${{ matrix.distro }}
-        run: |
-          echo "ARTIFACT_NAME=${DISTRO#*:}" >> "$GITHUB_OUTPUT"
-
       - name: Upload debs as artifacts
-        uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4.6.2
+        uses: actions/upload-artifact@v4
         with:
-          name: debs-${{ steps.artifact-name.outputs.ARTIFACT_NAME }}
+          name: debs
           path: debs/*
 
   build-wheels:
-    name: Build wheels on ${{ matrix.os }}
+    name: Build wheels on ${{ matrix.os }} for ${{ matrix.arch }}
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
-        os:
-          - ubuntu-24.04
-          - ubuntu-24.04-arm
-          - macos-13 # This uses x86-64
-          - macos-14 # This uses arm64
+        os: [ubuntu-22.04, macos-12]
+        arch: [x86_64, aarch64]
         # is_pr is a flag used to exclude certain jobs from the matrix on PRs.
         # It is not read by the rest of the workflow.
         is_pr:
@@ -124,28 +112,39 @@ jobs:
         exclude:
           # Don't build macos wheels on PR CI.
           - is_pr: true
-            os: "macos-13"
-          - is_pr: true
-            os: "macos-14"
+            os: "macos-12"
+          # Don't build aarch64 wheels on mac.
+          - os: "macos-12"
+            arch: aarch64
           # Don't build aarch64 wheels on PR CI.
           - is_pr: true
-            os: "ubuntu-24.04-arm"
+            arch: aarch64
 
     steps:
-      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+      - uses: actions/checkout@v4
 
-      - uses: actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065 # v5.6.0
+      - uses: actions/setup-python@v5
         with:
           # setup-python@v4 doesn't impose a default python version. Need to use 3.x
           # here, because `python` on osx points to Python 2.7.
           python-version: "3.x"
 
       - name: Install cibuildwheel
-        run: python -m pip install cibuildwheel==3.0.0
+        run: python -m pip install cibuildwheel==2.19.1
+
+      - name: Set up QEMU to emulate aarch64
+        if: matrix.arch == 'aarch64'
+        uses: docker/setup-qemu-action@v3
+        with:
+          platforms: arm64
+
+      - name: Build aarch64 wheels
+        if: matrix.arch == 'aarch64'
+        run: echo 'CIBW_ARCHS_LINUX=aarch64' >> $GITHUB_ENV
 
       - name: Only build a single wheel on PR
         if: startsWith(github.ref, 'refs/pull/')
-        run: echo "CIBW_BUILD="cp39-manylinux_*"" >> $GITHUB_ENV
+        run: echo "CIBW_BUILD="cp39-manylinux_${{ matrix.arch }}"" >> $GITHUB_ENV
 
       - name: Build wheels
         run: python -m cibuildwheel --output-dir wheelhouse
@@ -153,10 +152,13 @@ jobs:
           # Skip testing for platforms which various libraries don't have wheels
           # for, and so need extra build deps.
           CIBW_TEST_SKIP: pp3*-* *i686* *musl*
+          # Fix Rust OOM errors on emulated aarch64: https://github.com/rust-lang/cargo/issues/10583
+          CARGO_NET_GIT_FETCH_WITH_CLI: true
+          CIBW_ENVIRONMENT_PASS_LINUX: CARGO_NET_GIT_FETCH_WITH_CLI
 
-      - uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4.6.2
+      - uses: actions/upload-artifact@v4
         with:
-          name: Wheel-${{ matrix.os }}
+          name: Wheel-${{ matrix.os }}-${{ matrix.arch }}
           path: ./wheelhouse/*.whl
 
   build-sdist:
@@ -165,21 +167,22 @@ jobs:
     if: ${{ !startsWith(github.ref, 'refs/pull/') }}
 
     steps:
-      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
-      - uses: actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065 # v5.6.0
+      - uses: actions/checkout@v4
+      - uses: actions/setup-python@v5
         with:
-          python-version: "3.10"
+          python-version: '3.10'
 
       - run: pip install build
 
       - name: Build sdist
         run: python -m build --sdist
 
-      - uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4.6.2
+      - uses: actions/upload-artifact@v4
         with:
           name: Sdist
           path: dist/*.tar.gz
 
+
   # if it's a tag, create a release and attach the artifacts to it
   attach-assets:
     name: "Attach assets to release"
@@ -191,23 +194,17 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Download all workflow run artifacts
-        uses: actions/download-artifact@d3f86a106a0bac45b974a628896c90dbdf5c8093 # v4.3.0
+        uses: actions/download-artifact@v4
       - name: Build a tarball for the debs
-        # We need to merge all the debs uploads into one folder, then compress
-        # that.
-        run: |
-          mkdir debs
-          mv debs*/* debs/
-          tar -cvJf debs.tar.xz debs
+        run: tar -cvJf debs.tar.xz debs
       - name: Attach to release
-        # Pinned to work around https://github.com/softprops/action-gh-release/issues/445
-        uses: softprops/action-gh-release@c95fe1489396fe8a9eb87c0abf8aa5b2ef267fda # v0.1.15
+        uses: softprops/action-gh-release@a929a66f232c1b11af63782948aa2210f981808a  # PR#109
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
         with:
           files: |
             Sdist/*
-            Wheel*/*
+            Wheel/*
             debs.tar.xz
           # if it's not already published, keep the release as a draft.
           draft: true

.github/workflows/schema.yaml

@@ -1,57 +0,0 @@
-name: Schema
-
-on:
-  pull_request:
-    paths:
-      - schema/**
-      - docs/usage/configuration/config_documentation.md
-  push:
-    branches: ["develop", "release-*"]
-  workflow_dispatch:
-
-jobs:
-  validate-schema:
-    name: Ensure Synapse config schema is valid
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
-      - uses: actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065 # v5.6.0
-        with:
-          python-version: "3.x"
-      - name: Install check-jsonschema
-        run: pip install check-jsonschema==0.33.0
-
-      - name: Validate meta schema
-        run: check-jsonschema --check-metaschema schema/v*/meta.schema.json
-      - name: Validate schema
-        run: |-
-          # Please bump on introduction of a new meta schema.
-          LATEST_META_SCHEMA_VERSION=v1
-          check-jsonschema \
-            --schemafile="schema/$LATEST_META_SCHEMA_VERSION/meta.schema.json" \
-            schema/synapse-config.schema.yaml
-      - name: Validate default config
-      # Populates the empty instance with default values and checks against the schema.
-        run: |-
-          echo "{}" | check-jsonschema \
-            --fill-defaults --schemafile=schema/synapse-config.schema.yaml -
-
-  check-doc-generation:
-    name: Ensure generated documentation is up-to-date
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
-      - uses: actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065 # v5.6.0
-        with:
-          python-version: "3.x"
-      - name: Install PyYAML
-        run: pip install PyYAML==6.0.2
-
-      - name: Regenerate config documentation
-        run: |
-          scripts-dev/gen_config_documentation.py \
-            schema/synapse-config.schema.yaml \
-          > docs/usage/configuration/config_documentation.md
-      - name: Error in case of any differences
-      # Errors if there are now any modified files (untracked files are ignored).
-        run: 'git diff --exit-code'

.github/workflows/tests.yml

@@ -11,9 +11,6 @@ concurrency:
   group: ${{ github.workflow }}-${{ github.ref }}
   cancel-in-progress: true
 
-env:
-  RUST_VERSION: 1.87.0
-
 jobs:
   # Job to detect what has changed so we don't run e.g. Rust checks on PRs that
   # don't modify Rust code.
@@ -26,7 +23,7 @@ jobs:
       linting: ${{ !startsWith(github.ref, 'refs/pull/') || steps.filter.outputs.linting }}
       linting_readme: ${{ !startsWith(github.ref, 'refs/pull/') || steps.filter.outputs.linting_readme }}
     steps:
-    - uses: dorny/paths-filter@de90cc6fb38fc0963ad72b210f1f284cd68cea36 # v3.0.2
+    - uses: dorny/paths-filter@v3
       id: filter
       # We only check on PRs
       if: startsWith(github.ref, 'refs/pull/')
@@ -86,16 +83,14 @@ jobs:
     if: ${{ needs.changes.outputs.linting == 'true' }}
 
     steps:
-      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+      - uses: actions/checkout@v4
       - name: Install Rust
-        uses: dtolnay/rust-toolchain@b3b07ba8b418998c39fb20f53e8b695cdcc8de1b # master
-        with:
-          toolchain: ${{ env.RUST_VERSION }}
-      - uses: Swatinem/rust-cache@98c8021b550208e191a6a3145459bfc9fb29c4c0 # v2.8.0
-      - uses: matrix-org/setup-python-poetry@5bbf6603c5c930615ec8a29f1b5d7d258d905aa4 # v2.0.0
+        uses: dtolnay/rust-toolchain@1.66.0
+      - uses: Swatinem/rust-cache@v2
+      - uses: matrix-org/setup-python-poetry@v1
         with:
           python-version: "3.x"
-          poetry-version: "2.1.1"
+          poetry-version: "1.3.2"
           extras: "all"
       - run: poetry run scripts-dev/generate_sample_config.sh --check
       - run: poetry run scripts-dev/config-lint.sh
@@ -106,8 +101,8 @@ jobs:
     if: ${{ needs.changes.outputs.linting == 'true' }}
 
     steps:
-      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
-      - uses: actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065 # v5.6.0
+      - uses: actions/checkout@v4
+      - uses: actions/setup-python@v5
         with:
           python-version: "3.x"
       - run: "pip install 'click==8.1.1' 'GitPython>=3.1.20'"
@@ -116,8 +111,8 @@ jobs:
   check-lockfile:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
-      - uses: actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065 # v5.6.0
+      - uses: actions/checkout@v4
+      - uses: actions/setup-python@v5
         with:
           python-version: "3.x"
       - run: .ci/scripts/check_lockfile.py
@@ -129,12 +124,11 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+        uses: actions/checkout@v4
 
       - name: Setup Poetry
-        uses: matrix-org/setup-python-poetry@5bbf6603c5c930615ec8a29f1b5d7d258d905aa4 # v2.0.0
+        uses: matrix-org/setup-python-poetry@v1
         with:
-          poetry-version: "2.1.1"
           install-project: "false"
 
       - name: Run ruff check
@@ -151,16 +145,14 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+        uses: actions/checkout@v4
 
       - name: Install Rust
-        uses: dtolnay/rust-toolchain@b3b07ba8b418998c39fb20f53e8b695cdcc8de1b # master
-        with:
-          toolchain: ${{ env.RUST_VERSION }}
-      - uses: Swatinem/rust-cache@98c8021b550208e191a6a3145459bfc9fb29c4c0 # v2.8.0
+        uses: dtolnay/rust-toolchain@1.66.0
+      - uses: Swatinem/rust-cache@v2
 
       - name: Setup Poetry
-        uses: matrix-org/setup-python-poetry@5bbf6603c5c930615ec8a29f1b5d7d258d905aa4 # v2.0.0
+        uses: matrix-org/setup-python-poetry@v1
         with:
           # We want to make use of type hints in optional dependencies too.
           extras: all
@@ -169,12 +161,11 @@ jobs:
           # https://github.com/matrix-org/synapse/pull/15376#issuecomment-1498983775
           # To make CI green, err towards caution and install the project.
           install-project: "true"
-          poetry-version: "2.1.1"
 
       # Cribbed from
       # https://github.com/AustinScola/mypy-cache-github-action/blob/85ea4f2972abed39b33bd02c36e341b28ca59213/src/restore.ts#L10-L17
       - name: Restore/persist mypy's cache
-        uses: actions/cache@5a3ec84eff668545956fd18022155c47e93e2684 # v4.2.3
+        uses: actions/cache@v4
         with:
           path: |
             .mypy_cache
@@ -187,7 +178,7 @@ jobs:
   lint-crlf:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+      - uses: actions/checkout@v4
       - name: Check line endings
         run: scripts-dev/check_line_terminators.sh
 
@@ -195,11 +186,11 @@ jobs:
     if: ${{ (github.base_ref == 'develop'  || contains(github.base_ref, 'release-')) && github.actor != 'dependabot[bot]' }}
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+      - uses: actions/checkout@v4
         with:
           ref: ${{ github.event.pull_request.head.sha }}
           fetch-depth: 0
-      - uses: actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065 # v5.6.0
+      - uses: actions/setup-python@v5
         with:
           python-version: "3.x"
       - run: "pip install 'towncrier>=18.6.0rc1'"
@@ -213,17 +204,15 @@ jobs:
     if: ${{ needs.changes.outputs.linting == 'true' }}
 
     steps:
-      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+      - uses: actions/checkout@v4
         with:
           ref: ${{ github.event.pull_request.head.sha }}
       - name: Install Rust
-        uses: dtolnay/rust-toolchain@b3b07ba8b418998c39fb20f53e8b695cdcc8de1b # master
+        uses: dtolnay/rust-toolchain@1.66.0
+      - uses: Swatinem/rust-cache@v2
+      - uses: matrix-org/setup-python-poetry@v1
         with:
-          toolchain: ${{ env.RUST_VERSION }}
-      - uses: Swatinem/rust-cache@98c8021b550208e191a6a3145459bfc9fb29c4c0 # v2.8.0
-      - uses: matrix-org/setup-python-poetry@5bbf6603c5c930615ec8a29f1b5d7d258d905aa4 # v2.0.0
-        with:
-          poetry-version: "2.1.1"
+          poetry-version: "1.3.2"
           extras: "all"
       - run: poetry run scripts-dev/check_pydantic_models.py
 
@@ -233,14 +222,13 @@ jobs:
     if: ${{ needs.changes.outputs.rust == 'true' }}
 
     steps:
-      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+      - uses: actions/checkout@v4
 
       - name: Install Rust
-        uses: dtolnay/rust-toolchain@b3b07ba8b418998c39fb20f53e8b695cdcc8de1b # master
+        uses: dtolnay/rust-toolchain@1.66.0
         with:
             components: clippy
-            toolchain: ${{ env.RUST_VERSION }}
-      - uses: Swatinem/rust-cache@98c8021b550208e191a6a3145459bfc9fb29c4c0 # v2.8.0
+      - uses: Swatinem/rust-cache@v2
 
       - run: cargo clippy -- -D warnings
 
@@ -252,70 +240,32 @@ jobs:
     if: ${{ needs.changes.outputs.rust == 'true' }}
 
     steps:
-      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+      - uses: actions/checkout@v4
 
       - name: Install Rust
-        uses: dtolnay/rust-toolchain@b3b07ba8b418998c39fb20f53e8b695cdcc8de1b # master
+        uses: dtolnay/rust-toolchain@master
         with:
-            toolchain: nightly-2025-04-23
+            toolchain: nightly-2022-12-01
             components: clippy
-      - uses: Swatinem/rust-cache@98c8021b550208e191a6a3145459bfc9fb29c4c0 # v2.8.0
+      - uses: Swatinem/rust-cache@v2
 
       - run: cargo clippy --all-features -- -D warnings
 
-  lint-rust:
-    runs-on: ubuntu-latest
-    needs: changes
-    if: ${{ needs.changes.outputs.rust == 'true' }}
-
-    steps:
-      - name: Checkout repository
-        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
-
-      - name: Install Rust
-        uses: dtolnay/rust-toolchain@b3b07ba8b418998c39fb20f53e8b695cdcc8de1b # master
-        with:
-          toolchain: ${{ env.RUST_VERSION }}
-      - uses: Swatinem/rust-cache@98c8021b550208e191a6a3145459bfc9fb29c4c0 # v2.8.0
-
-      - name: Setup Poetry
-        uses: matrix-org/setup-python-poetry@5bbf6603c5c930615ec8a29f1b5d7d258d905aa4 # v2.0.0
-        with:
-          # Install like a normal project from source with all optional dependencies
-          extras: all
-          install-project: "true"
-          poetry-version: "2.1.1"
-
-      - name: Ensure `Cargo.lock` is up to date (no stray changes after install)
-        # The `::error::` syntax is using GitHub Actions' error annotations, see
-        # https://docs.github.com/en/actions/reference/workflow-commands-for-github-actions
-        run: |
-          if git diff --quiet Cargo.lock; then
-            echo "Cargo.lock is up to date"
-          else
-            echo "::error::Cargo.lock has uncommitted changes after install. Please run 'poetry install --extras all' and commit the Cargo.lock changes."
-            git diff --exit-code Cargo.lock
-            exit 1
-          fi
-
-  # This job is split from `lint-rust` because it requires a nightly Rust toolchain
-  # for some of the unstable options we use in `.rustfmt.toml`.
   lint-rustfmt:
     runs-on: ubuntu-latest
     needs: changes
     if: ${{ needs.changes.outputs.rust == 'true' }}
 
     steps:
-      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+      - uses: actions/checkout@v4
 
       - name: Install Rust
-        uses: dtolnay/rust-toolchain@b3b07ba8b418998c39fb20f53e8b695cdcc8de1b # master
+        uses: dtolnay/rust-toolchain@master
         with:
-          # We use nightly so that we can use some unstable options that we use in
-          # `.rustfmt.toml`.
-          toolchain: nightly-2025-04-23
+          # We use nightly so that it correctly groups together imports
+          toolchain: nightly-2022-12-01
           components: rustfmt
-      - uses: Swatinem/rust-cache@98c8021b550208e191a6a3145459bfc9fb29c4c0 # v2.8.0
+      - uses: Swatinem/rust-cache@v2
 
       - run: cargo fmt --check
 
@@ -326,8 +276,8 @@ jobs:
     needs: changes
     if: ${{ needs.changes.outputs.linting_readme == 'true' }}
     steps:
-      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
-      - uses: actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065 # v5.6.0
+      - uses: actions/checkout@v4
+      - uses: actions/setup-python@v5
         with:
           python-version: "3.x"
       - run: "pip install rstcheck"
@@ -347,12 +297,11 @@ jobs:
       - check-lockfile
       - lint-clippy
       - lint-clippy-nightly
-      - lint-rust
       - lint-rustfmt
       - lint-readme
     runs-on: ubuntu-latest
     steps:
-      - uses: matrix-org/done-action@3409aa904e8a2aaf2220f09bc954d3d0b0a2ee67 # v3
+      - uses: matrix-org/done-action@v3
         with:
           needs: ${{ toJSON(needs) }}
 
@@ -366,18 +315,17 @@ jobs:
             lint-pydantic
             lint-clippy
             lint-clippy-nightly
-            lint-rust
             lint-rustfmt
             lint-readme
 
 
   calculate-test-jobs:
     if: ${{ !cancelled() && !failure() }} # Allow previous steps to be skipped, but not fail
-    # needs: linting-done
+    needs: linting-done
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
-      - uses: actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065 # v5.6.0
+      - uses: actions/checkout@v4
+      - uses: actions/setup-python@v5
         with:
           python-version: "3.x"
       - id: get-matrix
@@ -393,12 +341,11 @@ jobs:
       - changes
     runs-on: ubuntu-latest
     strategy:
-      fail-fast: false
       matrix:
         job:  ${{ fromJson(needs.calculate-test-jobs.outputs.trial_test_matrix) }}
 
     steps:
-      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+      - uses: actions/checkout@v4
       - run: sudo apt-get -qq install xmlsec1
       - name: Set up PostgreSQL ${{ matrix.job.postgres-version }}
         if: ${{ matrix.job.postgres-version }}
@@ -413,38 +360,19 @@ jobs:
             postgres:${{ matrix.job.postgres-version }}
 
       - name: Install Rust
-        uses: dtolnay/rust-toolchain@b3b07ba8b418998c39fb20f53e8b695cdcc8de1b # master
-        with:
-          toolchain: ${{ env.RUST_VERSION }}
-      - uses: Swatinem/rust-cache@98c8021b550208e191a6a3145459bfc9fb29c4c0 # v2.8.0
+        uses: dtolnay/rust-toolchain@1.66.0
+      - uses: Swatinem/rust-cache@v2
 
-      - uses: matrix-org/setup-python-poetry@5bbf6603c5c930615ec8a29f1b5d7d258d905aa4 # v2.0.0
+      - uses: matrix-org/setup-python-poetry@v1
         with:
           python-version: ${{ matrix.job.python-version }}
-          poetry-version: "2.1.1"
+          poetry-version: "1.3.2"
           extras: ${{ matrix.job.extras }}
       - name: Await PostgreSQL
         if: ${{ matrix.job.postgres-version }}
         timeout-minutes: 2
         run: until pg_isready -h localhost; do sleep 1; done
-      - run: |
-          (
-            while true; do
-              echo "......."
-              date
-              df -h | grep root
-              free -m
-              sleep 10
-            done
-          ) &
-          MONITOR_PID=$!
-
-          poetry run trial --jobs=6 tests
-          STATUS=$?
-
-          kill $MONITOR_PID
-          exit $STATUS
-
+      - run: poetry run trial --jobs=6 tests
         env:
           SYNAPSE_POSTGRES: ${{ matrix.job.database == 'postgres' || '' }}
           SYNAPSE_POSTGRES_HOST: /var/run/postgresql
@@ -471,13 +399,11 @@ jobs:
       - changes
     runs-on: ubuntu-22.04
     steps:
-      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+      - uses: actions/checkout@v4
 
       - name: Install Rust
-        uses: dtolnay/rust-toolchain@b3b07ba8b418998c39fb20f53e8b695cdcc8de1b # master
-        with:
-          toolchain: ${{ env.RUST_VERSION }}
-      - uses: Swatinem/rust-cache@98c8021b550208e191a6a3145459bfc9fb29c4c0 # v2.8.0
+        uses: dtolnay/rust-toolchain@1.66.0
+      - uses: Swatinem/rust-cache@v2
 
       # There aren't wheels for some of the older deps, so we need to install
       # their build dependencies
@@ -486,7 +412,7 @@ jobs:
           sudo apt-get -qq install build-essential libffi-dev python3-dev \
             libxml2-dev libxslt-dev xmlsec1 zlib1g-dev libjpeg-dev libwebp-dev
 
-      - uses: actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065 # v5.6.0
+      - uses: actions/setup-python@v5
         with:
           python-version: '3.9'
 
@@ -536,13 +462,13 @@ jobs:
         extras: ["all"]
 
     steps:
-      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+      - uses: actions/checkout@v4
       # Install libs necessary for PyPy to build binary wheels for dependencies
       - run: sudo apt-get -qq install xmlsec1 libxml2-dev libxslt-dev
-      - uses: matrix-org/setup-python-poetry@5bbf6603c5c930615ec8a29f1b5d7d258d905aa4 # v2.0.0
+      - uses: matrix-org/setup-python-poetry@v1
         with:
           python-version: ${{ matrix.python-version }}
-          poetry-version: "2.1.1"
+          poetry-version: "1.3.2"
           extras: ${{ matrix.extras }}
       - run: poetry run trial --jobs=2 tests
       - name: Dump logs
@@ -586,15 +512,13 @@ jobs:
         job: ${{ fromJson(needs.calculate-test-jobs.outputs.sytest_test_matrix) }}
 
     steps:
-      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+      - uses: actions/checkout@v4
       - name: Prepare test blacklist
         run: cat sytest-blacklist .ci/worker-blacklist > synapse-blacklist-with-workers
 
       - name: Install Rust
-        uses: dtolnay/rust-toolchain@b3b07ba8b418998c39fb20f53e8b695cdcc8de1b # master
-        with:
-          toolchain: ${{ env.RUST_VERSION }}
-      - uses: Swatinem/rust-cache@98c8021b550208e191a6a3145459bfc9fb29c4c0 # v2.8.0
+        uses: dtolnay/rust-toolchain@1.66.0
+      - uses: Swatinem/rust-cache@v2
 
       - name: Run SyTest
         run: /bootstrap.sh synapse
@@ -603,7 +527,7 @@ jobs:
         if: ${{ always() }}
         run: /sytest/scripts/tap_to_gha.pl /logs/results.tap
       - name: Upload SyTest logs
-        uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4.6.2
+        uses: actions/upload-artifact@v4
         if: ${{ always() }}
         with:
           name: Sytest Logs - ${{ job.status }} - (${{ join(matrix.job.*, ', ') }})
@@ -633,11 +557,11 @@ jobs:
           --health-retries 5
 
     steps:
-      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+      - uses: actions/checkout@v4
       - run: sudo apt-get -qq install xmlsec1 postgresql-client
-      - uses: matrix-org/setup-python-poetry@5bbf6603c5c930615ec8a29f1b5d7d258d905aa4 # v2.0.0
+      - uses: matrix-org/setup-python-poetry@v1
         with:
-          poetry-version: "2.1.1"
+          poetry-version: "1.3.2"
           extras: "postgres"
       - run: .ci/scripts/test_export_data_command.sh
         env:
@@ -657,7 +581,7 @@ jobs:
       matrix:
         include:
           - python-version: "3.9"
-            postgres-version: "13"
+            postgres-version: "11"
 
           - python-version: "3.13"
             postgres-version: "17"
@@ -677,7 +601,7 @@ jobs:
           --health-retries 5
 
     steps:
-      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+      - uses: actions/checkout@v4
       - name: Add PostgreSQL apt repository
         # We need a version of pg_dump that can handle the version of
         # PostgreSQL being tested against. The Ubuntu package repository lags
@@ -688,10 +612,10 @@ jobs:
           wget --quiet -O - https://www.postgresql.org/media/keys/ACCC4CF8.asc | sudo apt-key add -
           sudo apt-get update
       - run: sudo apt-get -qq install xmlsec1 postgresql-client
-      - uses: matrix-org/setup-python-poetry@5bbf6603c5c930615ec8a29f1b5d7d258d905aa4 # v2.0.0
+      - uses: matrix-org/setup-python-poetry@v1
         with:
           python-version: ${{ matrix.python-version }}
-          poetry-version: "2.1.1"
+          poetry-version: "1.3.2"
           extras: "postgres"
       - run: .ci/scripts/test_synapse_port_db.sh
         id: run_tester_script
@@ -701,7 +625,7 @@ jobs:
           PGPASSWORD: postgres
           PGDATABASE: postgres
       - name: "Upload schema differences"
-        uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4.6.2
+        uses: actions/upload-artifact@v4
         if: ${{ failure() && !cancelled() && steps.run_tester_script.outcome == 'failure' }}
         with:
           name: Schema dumps
@@ -731,21 +655,19 @@ jobs:
             database: Postgres
 
     steps:
-      - name: Checkout synapse codebase
-        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+      - name: Run actions/checkout@v4 for synapse
+        uses: actions/checkout@v4
         with:
           path: synapse
 
       - name: Install Rust
-        uses: dtolnay/rust-toolchain@b3b07ba8b418998c39fb20f53e8b695cdcc8de1b # master
-        with:
-          toolchain: ${{ env.RUST_VERSION }}
-      - uses: Swatinem/rust-cache@98c8021b550208e191a6a3145459bfc9fb29c4c0 # v2.8.0
+        uses: dtolnay/rust-toolchain@1.66.0
+      - uses: Swatinem/rust-cache@v2
 
       - name: Prepare Complement's Prerequisites
         run: synapse/.ci/scripts/setup_complement_prerequisites.sh
 
-      - uses: actions/setup-go@d35c59abb061a4a6fb18e82ac0862c26744d6ab5 # v5.5.0
+      - uses: actions/setup-go@v5
         with:
           cache-dependency-path: complement/go.sum
           go-version-file: complement/go.mod
@@ -768,13 +690,11 @@ jobs:
       - changes
 
     steps:
-      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+      - uses: actions/checkout@v4
 
       - name: Install Rust
-        uses: dtolnay/rust-toolchain@b3b07ba8b418998c39fb20f53e8b695cdcc8de1b # master
-        with:
-          toolchain: ${{ env.RUST_VERSION }}
-      - uses: Swatinem/rust-cache@98c8021b550208e191a6a3145459bfc9fb29c4c0 # v2.8.0
+        uses: dtolnay/rust-toolchain@1.66.0
+      - uses: Swatinem/rust-cache@v2
 
       - run: cargo test
 
@@ -788,13 +708,13 @@ jobs:
       - changes
 
     steps:
-      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+      - uses: actions/checkout@v4
 
       - name: Install Rust
-        uses: dtolnay/rust-toolchain@b3b07ba8b418998c39fb20f53e8b695cdcc8de1b # master
+        uses: dtolnay/rust-toolchain@master
         with:
             toolchain: nightly-2022-12-01
-      - uses: Swatinem/rust-cache@98c8021b550208e191a6a3145459bfc9fb29c4c0 # v2.8.0
+      - uses: Swatinem/rust-cache@v2
 
       - run: cargo bench --no-run
 
@@ -813,7 +733,7 @@ jobs:
       - linting-done
     runs-on: ubuntu-latest
     steps:
-      - uses: matrix-org/done-action@3409aa904e8a2aaf2220f09bc954d3d0b0a2ee67 # v3
+      - uses: matrix-org/done-action@v3
         with:
           needs: ${{ toJSON(needs) }}
 

.github/workflows/triage-incoming.yml

@@ -6,7 +6,7 @@ on:
 
 jobs:
   triage:
-    uses: matrix-org/backend-meta/.github/workflows/triage-incoming.yml@18beaf3c8e536108bd04d18e6c3dc40ba3931e28 # v2.0.3
+    uses: matrix-org/backend-meta/.github/workflows/triage-incoming.yml@v2
     with:
       project_id: 'PVT_kwDOAIB0Bs4AFDdZ'
       content_id: ${{ github.event.issue.node_id }}

.github/workflows/triage_labelled.yml

@@ -11,15 +11,11 @@ jobs:
     if: >
       contains(github.event.issue.labels.*.name, 'X-Needs-Info')
     steps:
-      - uses: actions/add-to-project@5b1a254a3546aef88e0a7724a77a623fa2e47c36 # main (v1.0.2 + 10 commits)
+      - uses: actions/add-to-project@main
         id: add_project
         with:
           project-url: "https://github.com/orgs/matrix-org/projects/67"
           github-token: ${{ secrets.ELEMENT_BOT_TOKEN }}
-        # This action will error if the issue already exists on the project. Which is
-        # common as `X-Needs-Info` will often be added to issues that are already in
-        # the triage queue. Prevent the whole job from failing in this case.
-        continue-on-error: true
       - name: Set status
         env:
           GITHUB_TOKEN: ${{ secrets.ELEMENT_BOT_TOKEN }}

.github/workflows/twisted_trunk.yml

@@ -20,9 +20,6 @@ concurrency:
   group: ${{ github.workflow }}-${{ github.ref }}
   cancel-in-progress: true
 
-env:
-  RUST_VERSION: 1.87.0
-
 jobs:
   check_repo:
     # Prevent this workflow from running on any fork of Synapse other than element-hq/synapse, as it is
@@ -43,19 +40,16 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+      - uses: actions/checkout@v4
 
       - name: Install Rust
-        uses: dtolnay/rust-toolchain@b3b07ba8b418998c39fb20f53e8b695cdcc8de1b # master
-        with:
-          toolchain: ${{ env.RUST_VERSION }}
-      - uses: Swatinem/rust-cache@98c8021b550208e191a6a3145459bfc9fb29c4c0 # v2.8.0
+        uses: dtolnay/rust-toolchain@stable
+      - uses: Swatinem/rust-cache@v2
 
-      - uses: matrix-org/setup-python-poetry@5bbf6603c5c930615ec8a29f1b5d7d258d905aa4 # v2.0.0
+      - uses: matrix-org/setup-python-poetry@v1
         with:
           python-version: "3.x"
           extras: "all"
-          poetry-version: "2.1.1"
       - run: |
           poetry remove twisted
           poetry add --extras tls git+https://github.com/twisted/twisted.git#${{ inputs.twisted_ref || 'trunk' }}
@@ -70,20 +64,17 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+      - uses: actions/checkout@v4
       - run: sudo apt-get -qq install xmlsec1
 
       - name: Install Rust
-        uses: dtolnay/rust-toolchain@b3b07ba8b418998c39fb20f53e8b695cdcc8de1b # master
-        with:
-          toolchain: ${{ env.RUST_VERSION }}
-      - uses: Swatinem/rust-cache@98c8021b550208e191a6a3145459bfc9fb29c4c0 # v2.8.0
+        uses: dtolnay/rust-toolchain@stable
+      - uses: Swatinem/rust-cache@v2
 
-      - uses: matrix-org/setup-python-poetry@5bbf6603c5c930615ec8a29f1b5d7d258d905aa4 # v2.0.0
+      - uses: matrix-org/setup-python-poetry@v1
         with:
           python-version: "3.x"
           extras: "all test"
-          poetry-version: "2.1.1"
       - run: |
           poetry remove twisted
           poetry add --extras tls git+https://github.com/twisted/twisted.git#trunk
@@ -117,13 +108,11 @@ jobs:
         - ${{ github.workspace }}:/src
 
     steps:
-      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+      - uses: actions/checkout@v4
 
       - name: Install Rust
-        uses: dtolnay/rust-toolchain@b3b07ba8b418998c39fb20f53e8b695cdcc8de1b # master
-        with:
-          toolchain: ${{ env.RUST_VERSION }}
-      - uses: Swatinem/rust-cache@98c8021b550208e191a6a3145459bfc9fb29c4c0 # v2.8.0
+        uses: dtolnay/rust-toolchain@stable
+      - uses: Swatinem/rust-cache@v2
 
       - name: Patch dependencies
         # Note: The poetry commands want to create a virtualenv in /src/.venv/,
@@ -147,7 +136,7 @@ jobs:
         if: ${{ always() }}
         run: /sytest/scripts/tap_to_gha.pl /logs/results.tap
       - name: Upload SyTest logs
-        uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4.6.2
+        uses: actions/upload-artifact@v4
         if: ${{ always() }}
         with:
           name: Sytest Logs - ${{ job.status }} - (${{ join(matrix.*, ', ') }})
@@ -175,14 +164,14 @@ jobs:
 
     steps:
       - name: Run actions/checkout@v4 for synapse
-        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+        uses: actions/checkout@v4
         with:
           path: synapse
 
       - name: Prepare Complement's Prerequisites
         run: synapse/.ci/scripts/setup_complement_prerequisites.sh
 
-      - uses: actions/setup-go@d35c59abb061a4a6fb18e82ac0862c26744d6ab5 # v5.5.0
+      - uses: actions/setup-go@v5
         with:
           cache-dependency-path: complement/go.sum
           go-version-file: complement/go.mod
@@ -192,11 +181,11 @@ jobs:
         run: |
           set -x
           DEBIAN_FRONTEND=noninteractive sudo apt-get install -yqq python3 pipx
-          pipx install poetry==2.1.1
+          pipx install poetry==1.3.2
 
           poetry remove -n twisted
           poetry add -n --extras tls git+https://github.com/twisted/twisted.git#trunk
-          poetry lock
+          poetry lock --no-update
         working-directory: synapse
 
       - run: |
@@ -217,7 +206,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+      - uses: actions/checkout@v4
       - uses: JasonEtco/create-an-issue@1b14a70e4d8dc185e5cc76d3bec9eab20257b2c5 # v2.9.2
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

.gitignore

@@ -47,7 +47,6 @@ __pycache__/
 /.idea/
 /.ropeproject/
 /.vscode/
-/.zed/
 
 # build products
 !/.coveragerc

.rustfmt.toml

@@ -1,6 +1 @@
-# Unstable options are only available on a nightly toolchain and must be opted into
-unstable_features = true
-
-# `group_imports` is an unstable option that requires nightly Rust toolchain. Tracked by
-# https://github.com/rust-lang/rustfmt/issues/5083
 group_imports = "StdExternalCrate"

LICENSE-COMMERCIAL

@@ -1,6 +0,0 @@
-Licensees holding a valid commercial license with Element may use this
-software in accordance with the terms contained in a written agreement
-between you and Element.
-
-To purchase a commercial license please contact our sales team at
-licensing@element.io

README.rst

@@ -8,28 +8,27 @@
 Synapse is an open source `Matrix <https://matrix.org>`__ homeserver
 implementation, written and maintained by `Element <https://element.io>`_.
 `Matrix <https://github.com/matrix-org>`__ is the open standard for
-secure and interoperable real-time communications. You can directly run
+secure and interoperable real time communications. You can directly run
 and manage the source code in this repository, available under an AGPL
-license (or alternatively under a commercial license from Element).
-There is no support provided by Element unless you have a
-subscription from Element.
+license. There is no support provided from Element unless you have a
+subscription.
 
-Subscription
-============
+Subscription alternative
+========================
 
-For those that need an enterprise-ready solution, Element
-Server Suite (ESS) is `available via subscription <https://element.io/pricing>`_.
+Alternatively, for those that need an enterprise-ready solution, Element
+Server Suite (ESS) is `available as a subscription <https://element.io/pricing>`_.
 ESS builds on Synapse to offer a complete Matrix-based backend including the full
 `Admin Console product <https://element.io/enterprise-functionality/admin-console>`_,
 giving admins the power to easily manage an organization-wide
 deployment. It includes advanced identity management, auditing,
-moderation and data retention options as well as Long-Term Support and
-SLAs. ESS supports any Matrix-compatible client.
+moderation and data retention options as well as Long Term Support and
+SLAs. ESS can be used to support any Matrix-based frontend client.
 
 .. contents::
 
-🛠️ Installation and configuration
-==================================
+🛠️ Installing and configuration
+===============================
 
 The Synapse documentation describes `how to install Synapse <https://element-hq.github.io/synapse/latest/setup/installation.html>`_. We recommend using
 `Docker images <https://element-hq.github.io/synapse/latest/setup/installation.html#docker-images-and-ansible-playbooks>`_ or `Debian packages from Matrix.org
@@ -133,7 +132,7 @@ connect from a client: see
 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.
 You will need to change the server you are logging into from ``matrix.org``
-and instead specify a homeserver URL of ``https://<server_name>:8448``
+and instead specify a Homeserver URL of ``https://<server_name>:8448``
 (or just ``https://<server_name>`` if you are using a reverse proxy).
 If you prefer to use another client, refer to our
 `client breakdown <https://matrix.org/ecosystem/clients/>`_.
@@ -162,15 +161,16 @@ the public internet. Without it, anyone can freely register accounts on your hom
 This can be exploited by attackers to create spambots targeting the rest of the Matrix
 federation.
 
-Your new Matrix ID will be formed partly from the ``server_name``, and partly
-from a localpart you specify when you create the account in the form of::
+Your new user name will be formed partly from the ``server_name``, and partly
+from a localpart you specify when you create the account. Your name will take
+the form of::
 
     @localpart:my.domain.name
 
 (pronounced "at localpart on my dot domain dot name").
 
 As when logging in, you will need to specify a "Custom server".  Specify your
-desired ``localpart`` in the 'Username' box.
+desired ``localpart`` in the 'User name' box.
 
 🎯 Troubleshooting and support
 ==============================
@@ -208,10 +208,10 @@ Identity servers have the job of mapping email addresses and other 3rd Party
 IDs (3PIDs) to Matrix user IDs, as well as verifying the ownership of 3PIDs
 before creating that mapping.
 
-**Identity servers do not store accounts or credentials - these are stored and managed on homeservers.
-Identity Servers are just for mapping 3rd Party IDs to Matrix IDs.**
+**They are not where accounts or credentials are stored - these live on home
+servers. Identity Servers are just for mapping 3rd party IDs to matrix IDs.**
 
-This process is highly security-sensitive, as there is an obvious risk of spam if it
+This process is very security-sensitive, as there is obvious risk of spam if it
 is too easy to sign up for Matrix accounts or harvest 3PID data. In the longer
 term, we hope to create a decentralised system to manage it (`matrix-doc #712
 <https://github.com/matrix-org/matrix-doc/issues/712>`_), but in the meantime,
@@ -237,9 +237,9 @@ email address.
 We welcome contributions to Synapse from the community!
 The best place to get started is our
 `guide for contributors <https://element-hq.github.io/synapse/latest/development/contributing_guide.html>`_.
-This is part of our broader `documentation <https://element-hq.github.io/synapse/latest>`_, which includes
-information for Synapse developers as well as Synapse administrators.
+This is part of our larger `documentation <https://element-hq.github.io/synapse/latest>`_, which includes
 
+information for Synapse developers as well as Synapse administrators.
 Developers might be particularly interested in:
 
 * `Synapse's database schema <https://element-hq.github.io/synapse/latest/development/database_schema.html>`_,
@@ -249,22 +249,6 @@ Developers might be particularly interested in:
 Alongside all that, join our developer community on Matrix:
 `#synapse-dev:matrix.org <https://matrix.to/#/#synapse-dev:matrix.org>`_, featuring real humans!
 
-Copyright and Licensing
-=======================
-
-| Copyright 2014-2017 OpenMarket Ltd
-| Copyright 2017 Vector Creations Ltd
-| Copyright 2017-2025 New Vector Ltd
-|
-
-This software is dual-licensed by New Vector Ltd (Element). It can be used either:
-
-(1) for free under the terms of the GNU Affero General Public License (as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version); OR
-
-(2) under the terms of a paid-for Element Commercial License agreement between you and Element (the terms of which may vary depending on what you and Element have agreed to).
-
-Unless required by applicable law or agreed to in writing, software distributed under the Licenses is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the Licenses for the specific language governing permissions and limitations under the Licenses.
-
 
 .. |support| image:: https://img.shields.io/badge/matrix-community%20support-success
   :alt: (get community support in #synapse:matrix.org)

build_rust.py

@@ -1,10 +1,8 @@
 # A build script for poetry that adds the rust extension.
 
-import itertools
 import os
 from typing import Any, Dict
 
-from packaging.specifiers import SpecifierSet
 from setuptools_rust import Binding, RustExtension
 
 
@@ -16,27 +14,10 @@ def build(setup_kwargs: Dict[str, Any]) -> None:
         target="synapse.synapse_rust",
         path=cargo_toml_path,
         binding=Binding.PyO3,
-        # This flag is a no-op in the latest versions. Instead, we need to
-        # specify this in the `bdist_wheel` config below.
         py_limited_api=True,
-        # We always build in release mode, as we can't distinguish
-        # between using `poetry` in development vs production.
+        # We force always building in release mode, as we can't tell the
+        # difference between using `poetry` in development vs production.
         debug=False,
     )
     setup_kwargs.setdefault("rust_extensions", []).append(extension)
     setup_kwargs["zip_safe"] = False
-
-    # We look up the minimum supported Python version with
-    # `python_requires` (e.g. ">=3.9.0,<4.0.0") and finding the first Python
-    # version that matches. We then convert that into the `py_limited_api` form,
-    # e.g. cp39 for Python 3.9.
-    py_limited_api: str
-    python_bounds = SpecifierSet(setup_kwargs["python_requires"])
-    for minor_version in itertools.count(start=8):
-        if f"3.{minor_version}.0" in python_bounds:
-            py_limited_api = f"cp3{minor_version}"
-            break
-
-    setup_kwargs.setdefault("options", {}).setdefault("bdist_wheel", {})[
-        "py_limited_api"
-    ] = py_limited_api

changelog.d/17374.feature

@@ -0,0 +1 @@
+Support [MSC4151](https://github.com/matrix-org/matrix-spec-proposals/pull/4151)'s stable report room API.

changelog.d/17657.misc

@@ -0,0 +1 @@
+Bump actions/download-artifact and actions/upload-artifact from v3 -> v4.

changelog.d/17786.misc

@@ -0,0 +1 @@
+Add a test for downloading and thumbnailing a CMYK JPEG.

changelog.d/17809.bugfix

@@ -0,0 +1 @@
+Fix bug with sliding sync where `$LAZY`-loading room members would not return `required_state` membership in incremental syncs.

changelog.d/17813.misc

@@ -0,0 +1 @@
+Refactor database calls to remove `Generator` usage.

changelog.d/17814.misc

@@ -0,0 +1 @@
+Refactor database calls to remove `Generator` usage.

changelog.d/17815.misc

@@ -0,0 +1 @@
+Refactor database calls to remove `Generator` usage.

changelog.d/17816.misc

@@ -0,0 +1 @@
+Refactor database calls to remove `Generator` usage.

changelog.d/17817.misc

@@ -0,0 +1 @@
+Refactor database calls to remove `Generator` usage.

changelog.d/17818.misc

@@ -0,0 +1 @@
+Refactor database calls to remove `Generator` usage.

changelog.d/17830.misc

@@ -0,0 +1 @@
+Include the destination in the error of 'Destination mismatch' on federation requests.

changelog.d/17839.bugfix

@@ -0,0 +1 @@
+Check if user has membership in a room before tagging it. Contributed by Lama Alosaimi.

changelog.d/17847.bugfix

@@ -0,0 +1,2 @@
+Fix a bug in the admin redact endpoint where the background task would not run if a worker was specified in
+the config option `run_background_tasks_on`.

changelog.d/17850.bugfix

@@ -0,0 +1 @@
+Fix bug when some presence and typing timeouts can expire early.

changelog.d/17852.misc

@@ -0,0 +1 @@
+The nix flake inside the repository no longer tracks nixpkgs/master to not catch the latest bugs from a PR merged 5 minutes ago.

changelog.d/17861.bugfix

@@ -0,0 +1 @@
+Fix detection when the built Rust library was outdated when using source installations.

changelog.d/17884.misc

@@ -0,0 +1 @@
+Minor speed-up of sliding sync by computing extensions results in parallel.

changelog.d/17887.misc

@@ -0,0 +1 @@
+Bump the default Python version in the Synapse Dockerfile from 3.11 -> 3.12.

changelog.d/17888.feature

@@ -0,0 +1 @@
+Add experimental support for [MSC4222](https://github.com/matrix-org/matrix-spec-proposals/pull/4222).

changelog.d/17890.misc

@@ -0,0 +1 @@
+Refactor database calls to remove `Generator` usage.

changelog.d/17894.misc

@@ -0,0 +1 @@
+Remove usage of internal header encoding API.

changelog.d/17902.misc

@@ -0,0 +1 @@
+Update version constraint to allow the latest poetry-core 1.9.1.

changelog.d/17903.bugfix

@@ -0,0 +1 @@
+Fix a long-standing bug in Synapse which could cause one-time keys to be issued in the incorrect order, causing message decryption failures.

changelog.d/17905.misc

@@ -0,0 +1 @@
+Use unique name for each os.arch variant when uploading Wheel artifacts.

changelog.d/17906.bugfix

@@ -0,0 +1 @@
+Fix tests to run with latest Twisted.

changelog.d/17907.bugfix

@@ -0,0 +1 @@
+Fix tests to run with latest Twisted.

changelog.d/17908.misc

@@ -0,0 +1 @@
+Remove support for python 3.8.

changelog.d/17909.misc

@@ -0,0 +1 @@
+Update the portdb CI to use Python 3.13 and Postgres 17 as latest dependencies.

changelog.d/17911.bugfix

@@ -0,0 +1 @@
+Fix tests to run with latest Twisted.

changelog.d/17914.bugfix

@@ -0,0 +1 @@
+Limit event fetches in test to prevent stack size from growing too large.

changelog.d/18474.misc

@@ -1 +0,0 @@
-Add debug logging for HMAC digest verification failures when using the admin API to register users.

changelog.d/18514.feature

@@ -1 +0,0 @@
-Add configurable rate limiting for the creation of rooms.

changelog.d/18540.feature

@@ -1 +0,0 @@
-Add support for [MSC4293](https://github.com/matrix-org/matrix-spec-proposals/pull/4293) - Redact on Kick/Ban.

changelog.d/18574.misc

@@ -1 +0,0 @@
-Speed up upgrading a room with large numbers of banned users.

changelog.d/18580.misc

@@ -1 +0,0 @@
-Fix config documentation generation script on Windows by enforcing UTF-8.

changelog.d/18585.feature

@@ -1 +0,0 @@
-When admins enable themselves to see soft-failed events, they will also see if the cause is due to the policy server flagging them as spam via `unsigned`.

changelog.d/18656.misc

@@ -1 +0,0 @@
-Refactor `Counter` metrics to be homeserver-scoped.

changelog.d/18670.misc

@@ -1 +0,0 @@
-Refactor background process metrics to be homeserver-scoped.

changelog.d/18686.feature

@@ -1 +0,0 @@
-Add ability to configure forward/outbound proxy via homeserver config instead of environment variables. See `http_proxy`, `https_proxy`, `no_proxy_hosts`.

changelog.d/18696.bugfix

@@ -1 +0,0 @@
-Allow return code 403 (allowed by C2S Spec since v1.2) when fetching profiles via federation.

changelog.d/18700.doc

@@ -1 +0,0 @@
-Minor improvements to README.

changelog.d/18714.misc

@@ -1 +0,0 @@
-Refactor `LaterGauge` metrics to be homeserver-scoped.

changelog.d/18715.misc

@@ -1 +0,0 @@
-Refactor `GaugeBucketCollector` metrics to be homeserver-scoped.

changelog.d/18718.misc

@@ -1 +0,0 @@
-Reduce database usage in Sliding Sync by not querying for background update completion after the update is known to be complete.

changelog.d/18722.feature

@@ -1 +0,0 @@
-Advertise experimental support for [MSC4306](https://github.com/matrix-org/matrix-spec-proposals/pull/4306) through `/_matrix/clients/versions` if enabled.

changelog.d/18723.misc

@@ -1 +0,0 @@
-Improve order of validation and ratelimiting in room creation.

changelog.d/18724.misc

@@ -1 +0,0 @@
-Refactor `Histogram` metrics to be homeserver-scoped.

changelog.d/18725.misc

@@ -1 +0,0 @@
-Refactor `Gauge` metrics to be homeserver-scoped.

changelog.d/18726.bugfix

@@ -1 +0,0 @@
-Register the MSC4306 endpoints in the CS API when the experimental feature is enabled.

changelog.d/18727.misc

@@ -1 +0,0 @@
-Bump minimum version bound on Twisted to 21.2.0.

changelog.d/18728.misc

@@ -1 +0,0 @@
-Use `twisted.internet.testing` module in tests instead of deprecated `twisted.test.proto_helpers`.

changelog.d/18729.misc

@@ -1 +0,0 @@
-Bump minimum version bound on Twisted to 21.2.0.

changelog.d/18730.misc

@@ -1 +0,0 @@
-Remove obsolete `/send_event` replication endpoint.

changelog.d/18733.misc

@@ -1 +0,0 @@
-Update metrics linting to be able to handle custom metrics.

changelog.d/18736.misc

@@ -1 +0,0 @@
-Work around `twisted.protocols.amp.TooLong` error by reducing logging in some tests.

changelog.d/18737.removal

@@ -1 +0,0 @@
-Deprecate `run_as_background_process` exported as part of the module API interface in favor of `ModuleApi.run_as_background_process`. See the relevant section in the upgrade notes for more information.

changelog.d/18748.misc

@@ -1 +0,0 @@
-Refactor cache metrics to be homeserver-scoped.

changelog.d/18750.bugfix

@@ -1 +0,0 @@
-Fix a long-standing bug where suspended users could not have server notices sent to them (a 403 was returned to the admin).

changelog.d/18753.misc

@@ -1 +0,0 @@
-Refactor `Histogram` metrics to be homeserver-scoped.

changelog.d/18755.misc

@@ -1 +0,0 @@
-Prevent "Move labelled issues to correct projects" GitHub Actions workflow from failing when an issue is already on the project board.

changelog.d/18756.misc

@@ -1 +0,0 @@
-Update implementation of [MSC4306: Thread Subscriptions](https://github.com/matrix-org/matrix-doc/issues/4306) to include automatic subscription conflict prevention as introduced in later drafts.

changelog.d/18757.misc

@@ -1 +0,0 @@
-Bump minimum supported Rust version (MSRV) to 1.82.0. Missed in [#18553](https://github.com/element-hq/synapse/pull/18553) (released in Synapse 1.134.0).

changelog.d/18759.feature

@@ -1 +0,0 @@
-Stable support for delegating authentication to [Matrix Authentication Service](https://github.com/element-hq/matrix-authentication-service/).

changelog.d/18760.doc.md

@@ -1 +0,0 @@
-Document that there can be multiple workers handling the `receipts` stream.

changelog.d/18761.doc.md

@@ -1 +0,0 @@
-Improve worker documentation for some device paths.

changelog.d/18762.feature

@@ -1 +0,0 @@
-Implement the push rules for experimental [MSC4306: Thread Subscriptions](https://github.com/matrix-org/matrix-doc/issues/4306).

changelog.d/18763.bugfix

@@ -1 +0,0 @@
-Fix an issue that could cause logcontexts to be lost on rate-limited requests. Found by @realtyem.

changelog.d/18772.misc

@@ -1 +0,0 @@
-Make `Clock.sleep(..)` return a coroutine, so that mypy can catch places where we don't await on it.

changelog.d/18787.misc

@@ -1 +0,0 @@
-CI debugging.

contrib/cmdclient/console.py

@@ -245,7 +245,7 @@ class SynapseCmd(cmd.Cmd):
 
         if "flows" not in json_res:
             print("Failed to find any login flows.")
-            return False
+            defer.returnValue(False)
 
         flow = json_res["flows"][0]  # assume first is the one we want.
         if "type" not in flow or "m.login.password" != flow["type"] or "stages" in flow:
@@ -254,8 +254,8 @@ class SynapseCmd(cmd.Cmd):
                 "Unable to login via the command line client. Please visit "
                 "%s to login." % fallback_url
             )
-            return False
-        return True
+            defer.returnValue(False)
+        defer.returnValue(True)
 
     def do_emailrequest(self, line):
         """Requests the association of a third party identifier

contrib/cmdclient/http.py

@@ -78,7 +78,7 @@ class TwistedHttpClient(HttpClient):
             url, data, headers_dict={"Content-Type": ["application/json"]}
         )
         body = yield readBody(response)
-        return response.code, body
+        defer.returnValue((response.code, body))
 
     @defer.inlineCallbacks
     def get_json(self, url, args=None):
@@ -88,7 +88,7 @@ class TwistedHttpClient(HttpClient):
             url = "%s?%s" % (url, qs)
         response = yield self._create_get_request(url)
         body = yield readBody(response)
-        return json.loads(body)
+        defer.returnValue(json.loads(body))
 
     def _create_put_request(self, url, json_data, headers_dict: Optional[dict] = None):
         """Wrapper of _create_request to issue a PUT request"""
@@ -134,7 +134,7 @@ class TwistedHttpClient(HttpClient):
             response = yield self._create_request(method, url)
 
         body = yield readBody(response)
-        return json.loads(body)
+        defer.returnValue(json.loads(body))
 
     @defer.inlineCallbacks
     def _create_request(
@@ -173,7 +173,7 @@ class TwistedHttpClient(HttpClient):
         if self.verbose:
             print("Status %s %s" % (response.code, response.phrase))
             print(pformat(list(response.headers.getAllRawHeaders())))
-        return response
+        defer.returnValue(response)
 
     def sleep(self, seconds):
         d = defer.Deferred()

contrib/docker/README.md

@@ -30,6 +30,3 @@ docker-compose up -d
 ### More information
 
 For more information on required environment variables and mounts, see the main docker documentation at [/docker/README.md](../../docker/README.md)
-
-**For a more comprehensive Docker Compose example showcasing a full Matrix 2.0 stack, please see
-https://github.com/element-hq/element-docker-demo**

contrib/docker/docker-compose.yml

@@ -51,7 +51,7 @@ services:
       - traefik.http.routers.https-synapse.tls.certResolver=le-ssl
 
   db:
-    image: docker.io/postgres:15-alpine
+    image: docker.io/postgres:12-alpine
     # Change that password, of course!
     environment:
       - POSTGRES_USER=synapse

contrib/docker_compose_workers/README.md

@@ -8,9 +8,6 @@ All examples and snippets assume that your Synapse service is called `synapse` i
 
 An example Docker Compose file can be found [here](docker-compose.yaml).
 
-**For a more comprehensive Docker Compose example, showcasing a full Matrix 2.0 stack (originally based on this
-docker-compose.yaml), please see https://github.com/element-hq/element-docker-demo**
-
 ## Worker Service Examples in Docker Compose
 
 In order to start the Synapse container as a worker, you must specify an `entrypoint` that loads both the `homeserver.yaml` and the configuration for the worker (`synapse-generic-worker-1.yaml` in the example below). You must also include the worker type in the environment variable `SYNAPSE_WORKER` or alternatively pass `-m synapse.app.generic_worker` as part of the `entrypoint` after `"/start.py", "run"`).