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Detox, part 1 of N #12119

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merged 5 commits into from
Mar 1, 2022
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Detox, part 1 of N #12119

merged 5 commits into from
Mar 1, 2022

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DMRobertson
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As part of #11537 we are going to move away from tox.

This pulls out two linting steps from tox which refer to the scripts directory. Will be useful for #12118.

@DMRobertson DMRobertson requested a review from a team as a code owner March 1, 2022 16:42
@DMRobertson DMRobertson changed the title Dmr/detox 1 Detox, part 1 or N Mar 1, 2022
@DMRobertson DMRobertson changed the title Detox, part 1 or N Detox, part 1 of N Mar 1, 2022
@DMRobertson DMRobertson marked this pull request as draft March 1, 2022 16:45
@DMRobertson DMRobertson force-pushed the dmr/detox-1 branch 2 times, most recently from daeca4e to 6f23234 Compare March 1, 2022 16:52
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To be convinced this change works, I will

  • edit the sample config and news file so they fail the checks. Commit, let CI fail.
  • revert the last commit. Let CI pass (hopefully).

David Robertson added 2 commits March 1, 2022 17:12
@DMRobertson DMRobertson marked this pull request as ready for review March 1, 2022 17:15
@@ -50,7 +50,7 @@ jobs:
ref: ${{ github.event.pull_request.head.sha }}
fetch-depth: 0
- uses: actions/setup-python@v2
- run: pip install tox
- run: "pip install 'towncrier>=18.6.0rc1'"
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towncrier seems to be listed in the dev extra, not sure if we should just install though?

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I'd like to stick the version guard in setup.py too, but I'd prefer to leave that for when I get further with transitioning to poetry.

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And as for just installing here: I was trying to reproduce tox's behaviour as closely as I could (for now).

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Fair enough!

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Seems fine overall.

@DMRobertson DMRobertson merged commit 5f62a09 into develop Mar 1, 2022
@DMRobertson DMRobertson deleted the dmr/detox-1 branch March 1, 2022 19:47
reivilibre added a commit that referenced this pull request Mar 2, 2022
Synapse 1.54.0rc1 (2022-03-02)
==============================

Please note that this will be the last release of Synapse that is compatible with Mjolnir 1.3.1 and earlier.
Administrators of servers which have the Mjolnir module installed are advised to upgrade Mjolnir to version 1.3.2 or later.

Features
--------

- Add support for [MSC3202](matrix-org/matrix-spec-proposals#3202): sending one-time key counts and fallback key usage states to Application Services. ([\#11617](#11617))
- Improve the generated URL previews for some web pages. Contributed by @AndrewRyanChama. ([\#11985](#11985))
- Track cache invalidations in Prometheus metrics, as already happens for cache eviction based on size or time. ([\#12000](#12000))
- Implement experimental support for [MSC3720](matrix-org/matrix-spec-proposals#3720) (account status endpoints). ([\#12001](#12001), [\#12067](#12067))
- Enable modules to set a custom display name when registering a user. ([\#12009](#12009))
- Advertise Matrix 1.1 and 1.2 support on `/_matrix/client/versions`. ([\#12020](#12020), ([\#12022](#12022))
- Support only the stable identifier for [MSC3069](matrix-org/matrix-spec-proposals#3069 `is_guest` on `/_matrix/client/v3/account/whoami`. ([\#12021](#12021))
- Use room version 9 as the default room version (per [MSC3589](matrix-org/matrix-spec-proposals#3589)). ([\#12058](#12058))
- Add module callbacks to react to user deactivation status changes (i.e. deactivations and reactivations) and profile updates. ([\#12062](#12062))

Bugfixes
--------

- Fix a bug introduced in Synapse 1.48.0 where an edit of the latest event in a thread would not be properly applied to the thread summary. ([\#11992](#11992))
- Fix long-standing bug where the `get_rooms_for_user` cache was not correctly invalidated for remote users when the server left a room. ([\#11999](#11999))
- Fix a 500 error with Postgres when looking backwards with the [MSC3030](matrix-org/matrix-spec-proposals#3030) `/timestamp_to_event?dir=b` endpoint. ([\#12024](#12024))
- Properly fix a long-standing bug where wrong data could be inserted into the `event_search` table when using SQLite. This could block running `synapse_port_db` with an `argument of type 'int' is not iterable` error. This bug was partially fixed by a change in Synapse 1.44.0. ([\#12037](#12037))
- Fix slow performance of `/logout` in some cases where refresh tokens are in use. The slowness existed since the initial implementation of refresh tokens in version 1.38.0. ([\#12056](#12056))
- Fix a long-standing bug where Synapse would make additional failing requests over federation for missing data. ([\#12077](#12077))
- Fix occasional `Unhandled error in Deferred` error message. ([\#12089](#12089))
- Fix a bug introduced in Synapse 1.51.0 where incoming federation transactions containing at least one EDU would be dropped if debug logging was enabled for `synapse.8631_debug`. ([\#12098](#12098))
- Fix a long-standing bug which could cause push notifications to malfunction if `use_frozen_dicts` was set in the configuration. ([\#12100](#12100))
- Fix an extremely rare, long-standing bug in `ReadWriteLock` that would cause an error when a newly unblocked writer completes instantly. ([\#12105](#12105))
- Make a `POST` to `/rooms/<room_id>/receipt/m.read/<event_id>` only trigger a push notification if the count of unread messages is different to the one in the last successfully sent push. This reduces server load and load on the receiving device. ([\#11835](#11835))

Updates to the Docker image
---------------------------

- The Docker image no longer automatically creates a temporary volume at `/data`. This is not expected to affect normal usage. ([\#11997](#11997))
- Use Python 3.9 in Docker images by default. ([\#12112](#12112))

Improved Documentation
----------------------

- Document support for the `to_device`, `account_data`, `receipts`, and `presence` stream writers for workers. ([\#11599](#11599))
- Explain the meaning of spam checker callbacks' return values. ([\#12003](#12003))
- Clarify information about external Identity Provider IDs. ([\#12004](#12004))

Deprecations and Removals
-------------------------

- Deprecate using `synctl` with the config option `synctl_cache_factor` and print a warning if a user still uses this option. ([\#11865](#11865))
- Remove support for the legacy structured logging configuration (please see the the [upgrade notes](https://matrix-org.github.io/synapse/develop/upgrade#legacy-structured-logging-configuration-removal) if you are using `structured: true` in the Synapse configuration). ([\#12008](#12008))
- Drop support for [MSC3283](matrix-org/matrix-spec-proposals#3283) unstable flags now that the stable flags are supported. ([\#12018](#12018))
- Remove the unstable `/spaces` endpoint from [MSC2946](matrix-org/matrix-spec-proposals#2946). ([\#12073](#12073))

Internal Changes
----------------

- Make the `get_room_version` method use `get_room_version_id` to benefit from caching. ([\#11808](#11808))
- Remove unnecessary condition on knock -> leave auth rule check. ([\#11900](#11900))
- Add tests for device list changes between local users. ([\#11972](#11972))
- Optimise calculating `device_list` changes in `/sync`. ([\#11974](#11974))
- Add missing type hints to storage classes. ([\#11984](#11984))
- Refactor the search code for improved readability. ([\#11991](#11991))
- Move common deduplication code down into `_auth_and_persist_outliers`. ([\#11994](#11994))
- Limit concurrent joins from applications services. ([\#11996](#11996))
- Preparation for faster-room-join work: when parsing the `send_join` response, get the `m.room.create` event from `state`, not `auth_chain`. ([\#12005](#12005), [\#12039](#12039))
- Preparation for faster-room-join work: parse MSC3706 fields in send_join response. ([\#12011](#12011))
- Preparation for faster-room-join work: persist information on which events and rooms have partial state to the database. ([\#12012](#12012))
- Preparation for faster-room-join work: Support for calling `/federation/v1/state` on a remote server. ([\#12013](#12013))
- Configure `tox` to use `venv` rather than `virtualenv`. ([\#12015](#12015))
- Fix bug in `StateFilter.return_expanded()` and add some tests. ([\#12016](#12016))
- Use Matrix v1.1 endpoints (`/_matrix/client/v3/auth/...`) in fallback auth HTML forms. ([\#12019](#12019))
- Update the `olddeps` CI job to use an old version of `markupsafe`. ([\#12025](#12025))
- Upgrade Mypy to version 0.931. ([\#12030](#12030))
- Remove legacy `HomeServer.get_datastore()`. ([\#12031](#12031), [\#12070](#12070))
- Minor typing fixes. ([\#12034](#12034), [\#12069](#12069))
- After joining a room, create a dedicated logcontext to process the queued events. ([\#12041](#12041))
- Tidy up GitHub Actions config which builds distributions for PyPI. ([\#12051](#12051))
- Move configuration out of `setup.cfg`. ([\#12052](#12052), [\#12059](#12059))
- Fix error message when a worker process fails to talk to another worker process. ([\#12060](#12060))
- Fix using the `complement.sh` script without specifying a directory or a branch. Contributed by Nico on behalf of Famedly. ([\#12063](#12063))
- Add type hints to `tests/rest/client`. ([\#12066](#12066), [\#12072](#12072), [\#12084](#12084), [\#12094](#12094))
- Add some logging to `/sync` to try and track down #11916. ([\#12068](#12068))
- Inspect application dependencies using `importlib.metadata` or its backport. ([\#12088](#12088))
- Use `assertEqual` instead of the deprecated `assertEquals` in test code. ([\#12092](#12092))
- Move experimental support for [MSC3440](matrix-org/matrix-spec-proposals#3440) to `/versions`. ([\#12099](#12099))
- Add `stop_cancellation` utility function to stop `Deferred`s from being cancelled. ([\#12106](#12106))
- Improve exception handling for concurrent execution. ([\#12109](#12109))
- Advertise support for Python 3.10 in packaging files. ([\#12111](#12111))
- Move CI checks out of tox, to facilitate a move to using poetry. ([\#12119](#12119))
@DMRobertson DMRobertson mentioned this pull request Mar 3, 2022
DMRobertson pushed a commit that referenced this pull request Mar 3, 2022
I've argued in #11537 that poetry and tox don't cooperate well at the
moment. (See also #12119.) Therefore I'm pruning away bits of tox to make the transition to poetry easier. This change removes the commands for coverage.

We don't use coverage in anger at the moment. It shouldn't be too hard to add coverage as a dev-dependency and reintroduce this if we really want it.
Fizzadar added a commit to Fizzadar/synapse that referenced this pull request Apr 25, 2022
Synapse 1.54.0 (2022-03-08)
===========================

Please note that this will be the last release of Synapse that is compatible with Mjolnir 1.3.1 and earlier.
Administrators of servers which have the Mjolnir module installed are advised to upgrade Mjolnir to version 1.3.2 or later.

Bugfixes
--------

- Fix a bug introduced in Synapse 1.54.0rc1 preventing the new module callbacks introduced in this release from being registered by modules. ([\matrix-org#12141](matrix-org#12141))
- Fix a bug introduced in Synapse 1.54.0rc1 where runtime dependency version checks would mistakenly check development dependencies if they were present and would not accept pre-release versions of dependencies. ([\matrix-org#12129](matrix-org#12129), [\matrix-org#12177](matrix-org#12177))

Internal Changes
----------------

- Update release script to insert the previous version when writing "No significant changes" line in the changelog. ([\matrix-org#12127](matrix-org#12127))
- Relax the version guard for "packaging" added in [\matrix-org#12088](matrix-org#12088). ([\matrix-org#12166](matrix-org#12166))

Synapse 1.54.0rc1 (2022-03-02)
==============================

Features
--------

- Add support for [MSC3202](matrix-org/matrix-spec-proposals#3202): sending one-time key counts and fallback key usage states to Application Services. ([\matrix-org#11617](matrix-org#11617))
- Improve the generated URL previews for some web pages. Contributed by @AndrewRyanChama. ([\matrix-org#11985](matrix-org#11985))
- Track cache invalidations in Prometheus metrics, as already happens for cache eviction based on size or time. ([\matrix-org#12000](matrix-org#12000))
- Implement experimental support for [MSC3720](matrix-org/matrix-spec-proposals#3720) (account status endpoints). ([\matrix-org#12001](matrix-org#12001), [\matrix-org#12067](matrix-org#12067))
- Enable modules to set a custom display name when registering a user. ([\matrix-org#12009](matrix-org#12009))
- Advertise Matrix 1.1 and 1.2 support on `/_matrix/client/versions`. ([\matrix-org#12020](matrix-org#12020), ([\matrix-org#12022](matrix-org#12022))
- Support only the stable identifier for [MSC3069](matrix-org/matrix-spec-proposals#3069 `is_guest` on `/_matrix/client/v3/account/whoami`. ([\matrix-org#12021](matrix-org#12021))
- Use room version 9 as the default room version (per [MSC3589](matrix-org/matrix-spec-proposals#3589)). ([\matrix-org#12058](matrix-org#12058))
- Add module callbacks to react to user deactivation status changes (i.e. deactivations and reactivations) and profile updates. ([\matrix-org#12062](matrix-org#12062))

Bugfixes
--------

- Fix a bug introduced in Synapse 1.48.0 where an edit of the latest event in a thread would not be properly applied to the thread summary. ([\matrix-org#11992](matrix-org#11992))
- Fix long-standing bug where the `get_rooms_for_user` cache was not correctly invalidated for remote users when the server left a room. ([\matrix-org#11999](matrix-org#11999))
- Fix a 500 error with Postgres when looking backwards with the [MSC3030](matrix-org/matrix-spec-proposals#3030) `/timestamp_to_event?dir=b` endpoint. ([\matrix-org#12024](matrix-org#12024))
- Properly fix a long-standing bug where wrong data could be inserted into the `event_search` table when using SQLite. This could block running `synapse_port_db` with an `argument of type 'int' is not iterable` error. This bug was partially fixed by a change in Synapse 1.44.0. ([\matrix-org#12037](matrix-org#12037))
- Fix slow performance of `/logout` in some cases where refresh tokens are in use. The slowness existed since the initial implementation of refresh tokens in version 1.38.0. ([\matrix-org#12056](matrix-org#12056))
- Fix a long-standing bug where Synapse would make additional failing requests over federation for missing data. ([\matrix-org#12077](matrix-org#12077))
- Fix occasional `Unhandled error in Deferred` error message. ([\matrix-org#12089](matrix-org#12089))
- Fix a bug introduced in Synapse 1.51.0 where incoming federation transactions containing at least one EDU would be dropped if debug logging was enabled for `synapse.8631_debug`. ([\matrix-org#12098](matrix-org#12098))
- Fix a long-standing bug which could cause push notifications to malfunction if `use_frozen_dicts` was set in the configuration. ([\matrix-org#12100](matrix-org#12100))
- Fix an extremely rare, long-standing bug in `ReadWriteLock` that would cause an error when a newly unblocked writer completes instantly. ([\matrix-org#12105](matrix-org#12105))
- Make a `POST` to `/rooms/<room_id>/receipt/m.read/<event_id>` only trigger a push notification if the count of unread messages is different to the one in the last successfully sent push. This reduces server load and load on the receiving device. ([\matrix-org#11835](matrix-org#11835))

Updates to the Docker image
---------------------------

- The Docker image no longer automatically creates a temporary volume at `/data`. This is not expected to affect normal usage. ([\matrix-org#11997](matrix-org#11997))
- Use Python 3.9 in Docker images by default. ([\matrix-org#12112](matrix-org#12112))

Improved Documentation
----------------------

- Document support for the `to_device`, `account_data`, `receipts`, and `presence` stream writers for workers. ([\matrix-org#11599](matrix-org#11599))
- Explain the meaning of spam checker callbacks' return values. ([\matrix-org#12003](matrix-org#12003))
- Clarify information about external Identity Provider IDs. ([\matrix-org#12004](matrix-org#12004))

Deprecations and Removals
-------------------------

- Deprecate using `synctl` with the config option `synctl_cache_factor` and print a warning if a user still uses this option. ([\matrix-org#11865](matrix-org#11865))
- Remove support for the legacy structured logging configuration (please see the the [upgrade notes](https://matrix-org.github.io/synapse/develop/upgrade#legacy-structured-logging-configuration-removal) if you are using `structured: true` in the Synapse configuration). ([\matrix-org#12008](matrix-org#12008))
- Drop support for [MSC3283](matrix-org/matrix-spec-proposals#3283) unstable flags now that the stable flags are supported. ([\matrix-org#12018](matrix-org#12018))
- Remove the unstable `/spaces` endpoint from [MSC2946](matrix-org/matrix-spec-proposals#2946). ([\matrix-org#12073](matrix-org#12073))

Internal Changes
----------------

- Make the `get_room_version` method use `get_room_version_id` to benefit from caching. ([\matrix-org#11808](matrix-org#11808))
- Remove unnecessary condition on knock -> leave auth rule check. ([\matrix-org#11900](matrix-org#11900))
- Add tests for device list changes between local users. ([\matrix-org#11972](matrix-org#11972))
- Optimise calculating `device_list` changes in `/sync`. ([\matrix-org#11974](matrix-org#11974))
- Add missing type hints to storage classes. ([\matrix-org#11984](matrix-org#11984))
- Refactor the search code for improved readability. ([\matrix-org#11991](matrix-org#11991))
- Move common deduplication code down into `_auth_and_persist_outliers`. ([\matrix-org#11994](matrix-org#11994))
- Limit concurrent joins from applications services. ([\matrix-org#11996](matrix-org#11996))
- Preparation for faster-room-join work: when parsing the `send_join` response, get the `m.room.create` event from `state`, not `auth_chain`. ([\matrix-org#12005](matrix-org#12005), [\matrix-org#12039](matrix-org#12039))
- Preparation for faster-room-join work: parse MSC3706 fields in send_join response. ([\matrix-org#12011](matrix-org#12011))
- Preparation for faster-room-join work: persist information on which events and rooms have partial state to the database. ([\matrix-org#12012](matrix-org#12012))
- Preparation for faster-room-join work: Support for calling `/federation/v1/state` on a remote server. ([\matrix-org#12013](matrix-org#12013))
- Configure `tox` to use `venv` rather than `virtualenv`. ([\matrix-org#12015](matrix-org#12015))
- Fix bug in `StateFilter.return_expanded()` and add some tests. ([\matrix-org#12016](matrix-org#12016))
- Use Matrix v1.1 endpoints (`/_matrix/client/v3/auth/...`) in fallback auth HTML forms. ([\matrix-org#12019](matrix-org#12019))
- Update the `olddeps` CI job to use an old version of `markupsafe`. ([\matrix-org#12025](matrix-org#12025))
- Upgrade Mypy to version 0.931. ([\matrix-org#12030](matrix-org#12030))
- Remove legacy `HomeServer.get_datastore()`. ([\matrix-org#12031](matrix-org#12031), [\matrix-org#12070](matrix-org#12070))
- Minor typing fixes. ([\matrix-org#12034](matrix-org#12034), [\matrix-org#12069](matrix-org#12069))
- After joining a room, create a dedicated logcontext to process the queued events. ([\matrix-org#12041](matrix-org#12041))
- Tidy up GitHub Actions config which builds distributions for PyPI. ([\matrix-org#12051](matrix-org#12051))
- Move configuration out of `setup.cfg`. ([\matrix-org#12052](matrix-org#12052), [\matrix-org#12059](matrix-org#12059))
- Fix error message when a worker process fails to talk to another worker process. ([\matrix-org#12060](matrix-org#12060))
- Fix using the `complement.sh` script without specifying a directory or a branch. Contributed by Nico on behalf of Famedly. ([\matrix-org#12063](matrix-org#12063))
- Add type hints to `tests/rest/client`. ([\matrix-org#12066](matrix-org#12066), [\matrix-org#12072](matrix-org#12072), [\matrix-org#12084](matrix-org#12084), [\matrix-org#12094](matrix-org#12094))
- Add some logging to `/sync` to try and track down matrix-org#11916. ([\matrix-org#12068](matrix-org#12068))
- Inspect application dependencies using `importlib.metadata` or its backport. ([\matrix-org#12088](matrix-org#12088))
- Use `assertEqual` instead of the deprecated `assertEquals` in test code. ([\matrix-org#12092](matrix-org#12092))
- Move experimental support for [MSC3440](matrix-org/matrix-spec-proposals#3440) to `/versions`. ([\matrix-org#12099](matrix-org#12099))
- Add `stop_cancellation` utility function to stop `Deferred`s from being cancelled. ([\matrix-org#12106](matrix-org#12106))
- Improve exception handling for concurrent execution. ([\matrix-org#12109](matrix-org#12109))
- Advertise support for Python 3.10 in packaging files. ([\matrix-org#12111](matrix-org#12111))
- Move CI checks out of tox, to facilitate a move to using poetry. ([\matrix-org#12119](matrix-org#12119))
babolivier added a commit to matrix-org/synapse-dinsic that referenced this pull request Apr 28, 2022
Synapse 1.54.0 (2022-03-08)
===========================

Please note that this will be the last release of Synapse that is compatible with Mjolnir 1.3.1 and earlier.
Administrators of servers which have the Mjolnir module installed are advised to upgrade Mjolnir to version 1.3.2 or later.

Bugfixes
--------

- Fix a bug introduced in Synapse 1.54.0rc1 preventing the new module callbacks introduced in this release from being registered by modules. ([\#12141](matrix-org/synapse#12141))
- Fix a bug introduced in Synapse 1.54.0rc1 where runtime dependency version checks would mistakenly check development dependencies if they were present and would not accept pre-release versions of dependencies. ([\#12129](matrix-org/synapse#12129), [\#12177](matrix-org/synapse#12177))

Internal Changes
----------------

- Update release script to insert the previous version when writing "No significant changes" line in the changelog. ([\#12127](matrix-org/synapse#12127))
- Relax the version guard for "packaging" added in [\#12088](matrix-org/synapse#12088). ([\#12166](matrix-org/synapse#12166))

Synapse 1.54.0rc1 (2022-03-02)
==============================

Features
--------

- Add support for [MSC3202](matrix-org/matrix-spec-proposals#3202): sending one-time key counts and fallback key usage states to Application Services. ([\#11617](matrix-org/synapse#11617))
- Improve the generated URL previews for some web pages. Contributed by @AndrewRyanChama. ([\#11985](matrix-org/synapse#11985))
- Track cache invalidations in Prometheus metrics, as already happens for cache eviction based on size or time. ([\#12000](matrix-org/synapse#12000))
- Implement experimental support for [MSC3720](matrix-org/matrix-spec-proposals#3720) (account status endpoints). ([\#12001](matrix-org/synapse#12001), [\#12067](matrix-org/synapse#12067))
- Enable modules to set a custom display name when registering a user. ([\#12009](matrix-org/synapse#12009))
- Advertise Matrix 1.1 and 1.2 support on `/_matrix/client/versions`. ([\#12020](matrix-org/synapse#12020), ([\#12022](matrix-org/synapse#12022))
- Support only the stable identifier for [MSC3069](matrix-org/matrix-spec-proposals#3069 `is_guest` on `/_matrix/client/v3/account/whoami`. ([\#12021](matrix-org/synapse#12021))
- Use room version 9 as the default room version (per [MSC3589](matrix-org/matrix-spec-proposals#3589)). ([\#12058](matrix-org/synapse#12058))
- Add module callbacks to react to user deactivation status changes (i.e. deactivations and reactivations) and profile updates. ([\#12062](matrix-org/synapse#12062))

Bugfixes
--------

- Fix a bug introduced in Synapse 1.48.0 where an edit of the latest event in a thread would not be properly applied to the thread summary. ([\#11992](matrix-org/synapse#11992))
- Fix long-standing bug where the `get_rooms_for_user` cache was not correctly invalidated for remote users when the server left a room. ([\#11999](matrix-org/synapse#11999))
- Fix a 500 error with Postgres when looking backwards with the [MSC3030](matrix-org/matrix-spec-proposals#3030) `/timestamp_to_event?dir=b` endpoint. ([\#12024](matrix-org/synapse#12024))
- Properly fix a long-standing bug where wrong data could be inserted into the `event_search` table when using SQLite. This could block running `synapse_port_db` with an `argument of type 'int' is not iterable` error. This bug was partially fixed by a change in Synapse 1.44.0. ([\#12037](matrix-org/synapse#12037))
- Fix slow performance of `/logout` in some cases where refresh tokens are in use. The slowness existed since the initial implementation of refresh tokens in version 1.38.0. ([\#12056](matrix-org/synapse#12056))
- Fix a long-standing bug where Synapse would make additional failing requests over federation for missing data. ([\#12077](matrix-org/synapse#12077))
- Fix occasional `Unhandled error in Deferred` error message. ([\#12089](matrix-org/synapse#12089))
- Fix a bug introduced in Synapse 1.51.0 where incoming federation transactions containing at least one EDU would be dropped if debug logging was enabled for `synapse.8631_debug`. ([\#12098](matrix-org/synapse#12098))
- Fix a long-standing bug which could cause push notifications to malfunction if `use_frozen_dicts` was set in the configuration. ([\#12100](matrix-org/synapse#12100))
- Fix an extremely rare, long-standing bug in `ReadWriteLock` that would cause an error when a newly unblocked writer completes instantly. ([\#12105](matrix-org/synapse#12105))
- Make a `POST` to `/rooms/<room_id>/receipt/m.read/<event_id>` only trigger a push notification if the count of unread messages is different to the one in the last successfully sent push. This reduces server load and load on the receiving device. ([\#11835](matrix-org/synapse#11835))

Updates to the Docker image
---------------------------

- The Docker image no longer automatically creates a temporary volume at `/data`. This is not expected to affect normal usage. ([\#11997](matrix-org/synapse#11997))
- Use Python 3.9 in Docker images by default. ([\#12112](matrix-org/synapse#12112))

Improved Documentation
----------------------

- Document support for the `to_device`, `account_data`, `receipts`, and `presence` stream writers for workers. ([\#11599](matrix-org/synapse#11599))
- Explain the meaning of spam checker callbacks' return values. ([\#12003](matrix-org/synapse#12003))
- Clarify information about external Identity Provider IDs. ([\#12004](matrix-org/synapse#12004))

Deprecations and Removals
-------------------------

- Deprecate using `synctl` with the config option `synctl_cache_factor` and print a warning if a user still uses this option. ([\#11865](matrix-org/synapse#11865))
- Remove support for the legacy structured logging configuration (please see the the [upgrade notes](https://matrix-org.github.io/synapse/develop/upgrade#legacy-structured-logging-configuration-removal) if you are using `structured: true` in the Synapse configuration). ([\#12008](matrix-org/synapse#12008))
- Drop support for [MSC3283](matrix-org/matrix-spec-proposals#3283) unstable flags now that the stable flags are supported. ([\#12018](matrix-org/synapse#12018))
- Remove the unstable `/spaces` endpoint from [MSC2946](matrix-org/matrix-spec-proposals#2946). ([\#12073](matrix-org/synapse#12073))

Internal Changes
----------------

- Make the `get_room_version` method use `get_room_version_id` to benefit from caching. ([\#11808](matrix-org/synapse#11808))
- Remove unnecessary condition on knock -> leave auth rule check. ([\#11900](matrix-org/synapse#11900))
- Add tests for device list changes between local users. ([\#11972](matrix-org/synapse#11972))
- Optimise calculating `device_list` changes in `/sync`. ([\#11974](matrix-org/synapse#11974))
- Add missing type hints to storage classes. ([\#11984](matrix-org/synapse#11984))
- Refactor the search code for improved readability. ([\#11991](matrix-org/synapse#11991))
- Move common deduplication code down into `_auth_and_persist_outliers`. ([\#11994](matrix-org/synapse#11994))
- Limit concurrent joins from applications services. ([\#11996](matrix-org/synapse#11996))
- Preparation for faster-room-join work: when parsing the `send_join` response, get the `m.room.create` event from `state`, not `auth_chain`. ([\#12005](matrix-org/synapse#12005), [\#12039](matrix-org/synapse#12039))
- Preparation for faster-room-join work: parse MSC3706 fields in send_join response. ([\#12011](matrix-org/synapse#12011))
- Preparation for faster-room-join work: persist information on which events and rooms have partial state to the database. ([\#12012](matrix-org/synapse#12012))
- Preparation for faster-room-join work: Support for calling `/federation/v1/state` on a remote server. ([\#12013](matrix-org/synapse#12013))
- Configure `tox` to use `venv` rather than `virtualenv`. ([\#12015](matrix-org/synapse#12015))
- Fix bug in `StateFilter.return_expanded()` and add some tests. ([\#12016](matrix-org/synapse#12016))
- Use Matrix v1.1 endpoints (`/_matrix/client/v3/auth/...`) in fallback auth HTML forms. ([\#12019](matrix-org/synapse#12019))
- Update the `olddeps` CI job to use an old version of `markupsafe`. ([\#12025](matrix-org/synapse#12025))
- Upgrade Mypy to version 0.931. ([\#12030](matrix-org/synapse#12030))
- Remove legacy `HomeServer.get_datastore()`. ([\#12031](matrix-org/synapse#12031), [\#12070](matrix-org/synapse#12070))
- Minor typing fixes. ([\#12034](matrix-org/synapse#12034), [\#12069](matrix-org/synapse#12069))
- After joining a room, create a dedicated logcontext to process the queued events. ([\#12041](matrix-org/synapse#12041))
- Tidy up GitHub Actions config which builds distributions for PyPI. ([\#12051](matrix-org/synapse#12051))
- Move configuration out of `setup.cfg`. ([\#12052](matrix-org/synapse#12052), [\#12059](matrix-org/synapse#12059))
- Fix error message when a worker process fails to talk to another worker process. ([\#12060](matrix-org/synapse#12060))
- Fix using the `complement.sh` script without specifying a directory or a branch. Contributed by Nico on behalf of Famedly. ([\#12063](matrix-org/synapse#12063))
- Add type hints to `tests/rest/client`. ([\#12066](matrix-org/synapse#12066), [\#12072](matrix-org/synapse#12072), [\#12084](matrix-org/synapse#12084), [\#12094](matrix-org/synapse#12094))
- Add some logging to `/sync` to try and track down #11916. ([\#12068](matrix-org/synapse#12068))
- Inspect application dependencies using `importlib.metadata` or its backport. ([\#12088](matrix-org/synapse#12088))
- Use `assertEqual` instead of the deprecated `assertEquals` in test code. ([\#12092](matrix-org/synapse#12092))
- Move experimental support for [MSC3440](matrix-org/matrix-spec-proposals#3440) to `/versions`. ([\#12099](matrix-org/synapse#12099))
- Add `stop_cancellation` utility function to stop `Deferred`s from being cancelled. ([\#12106](matrix-org/synapse#12106))
- Improve exception handling for concurrent execution. ([\#12109](matrix-org/synapse#12109))
- Advertise support for Python 3.10 in packaging files. ([\#12111](matrix-org/synapse#12111))
- Move CI checks out of tox, to facilitate a move to using poetry. ([\#12119](matrix-org/synapse#12119))
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