* commit 'f88c48f3b':
1.18.0rc1
Fix error reporting when using `opentracing.trace` (#7961)
Fix typing replication not being handled on master (#7959)
Remove hacky error handling for inlineDeferreds. (#7950)
Convert tests/rest/admin/test_room.py to unix file endings (#7953)
Support oEmbed for media previews. (#7920)
Convert state resolution to async/await (#7942)
Fix up types and comments that refer to Deferreds. (#7945)
Do not convert async functions to Deferreds in the interactive_auth_handler (#7944)
Convert more of the media code to async/await (#7873)
Return an empty body for OPTIONS requests. (#7886)
Downgrade warning on client disconnect to INFO (#7928)
Convert presence handler helpers to async/await. (#7939)
Update the auth providers to be async. (#7935)
Put a cache on `/state_ids` (#7931)
* commit 'de119063f': (31 commits)
Convert room list handler to async/await. (#7912)
Element CSS and logo in email templates (#7919)
Lint the contrib/ directory in CI and linting scripts, add synctl to linting script (#7914)
Remove unused code from synapse.logging.utils. (#7897)
Fix a typo in the sample config. (#7890)
Fix deprecation warning: import ABC from collections.abc (#7892)
Change sample config's postgres user to synapse_user (#7889)
Fix deprecation warning due to invalid escape sequences (#7895)
Remove Ubuntu Eoan that is now EOL (#7888)
Fix the trace function for async functions. (#7872)
Add help for creating a user via docker (#7885)
Switch to Debian:Slim from Alpine for the docker image (#7839)
Stop using 'device_max_stream_id' (#7882)
Fix TypeError in synapse.notifier (#7880)
Add a default limit (of 100) to get/sync operations. (#7858)
Change "unknown room ver" logging to warning. (#7881)
Convert device handler to async/await (#7871)
Convert synapse.app to async/await. (#7868)
Convert _base, profile, and _receipts handlers to async/await (#7860)
Add admin endpoint to get members in a room. (#7842)
...
* commit 'a973bcb8a':
Add some tiny type annotations (#7870)
Remove obsolete comment.
Ensure that calls to `json.dumps` are compatible with the standard library json. (#7836)
Avoid brand new rooms in `delete_old_current_state_events` (#7854)
Allow accounts to be re-activated from the admin APIs. (#7847)
Fix tests
Fix typo
Newsfile
Use get_users_in_room rather than state handler in typing for speed
Fix client reader sharding tests (#7853)
Convert E2E key and room key handlers to async/await. (#7851)
Return the proper 403 Forbidden error during errors with JWT logins. (#7844)
remove `retry_on_integrity_error` wrapper for persist_events (#7848)
* commit '43726783e': (22 commits)
1.17.0rc1
Fix some spelling mistakes / typos. (#7811)
`update_membership` declaration: now always returns an event id. (#7809)
Improve stacktraces from exceptions in background processes (#7808)
Fix `can only concatenate list (not "tuple") to list` exception (#7810)
Pass original request headers from workers to the main process. (#7797)
Generate real events when we reject invites (#7804)
Add `HomeServer.signing_key` property (#7805)
Revert "Update the installation docs on apt-transport-https (#7801)"
Do not use simplejson in Synapse. (#7800)
Stop passing bytes when dumping JSON (#7799)
Update the installation docs on apt-transport-https (#7801)
shuffle changelog slightly
Change Caddy links (old is deprecated) (#7789)
Stop populating unused table `local_invites`. (#7793)
Refactor getting replication updates from database v2. (#7740)
Add libwebp dependency to Dockerfile (#7791)
Add documentation for JWT login type and improve sample config. (#7776)
Convert the appservice handler to async/await. (#7775)
Don't ignore `set_tweak` actions with no explicit `value`. (#7766)
...
* commit '5cdca53aa':
Merge different Resource implementation classes (#7732)
Fix inconsistent handling of upper and lower cases of email addresses. (#7021)
Allow YAML config file to contain None (#7779)
Fix a typo.
Move 1.15.2 after 1.16.0rc2.
1.16.0rc2
Remove an extraneous space.
Add links to the fixes.
Fix tense in the release notes.
Hack to add push priority to push notifications (#7765)
Add early returns to `_check_for_soft_fail` (#7769)
Use symbolic names for replication stream names (#7768)
Type checking for `FederationHandler` (#7770)
Fix new metric where we used ms instead of seconds (#7771)
Fix incorrect error message when database CTYPE was set incorrectly. (#7760)
Pin link in CHANGES.md
Fixes to CHANGES.md
* commit 'e8c36e527':
1.15.2
Correctly handle outliers as prev events over federation
Ensure that HTML pages served from Synapse include headers to avoid embedding.
