Synapse 1.52.0 (2022-02-08)

No significant changes since 1.52.0rc1.

Note that Twisted 22.1.0 has recently been released, which fixes a security issue within the Twisted library. We do not believe Synapse is affected by this vulnerability, though we advise server administrators who installed Synapse via pip to upgrade Twisted with pip install --upgrade Twisted treq as a matter of good practice. The Docker image matrixdotorg/synapse and the Debian packages from packages.matrix.org are using the updated library.

Synapse 1.52.0rc1 (2022-02-01)

Features

• Remove account data (including client config, push rules and ignored users) upon user deactivation. (#11621, #11788, #11789)
• Add an admin API to reset connection timeouts for remote server. (#11639)
• Add an admin API to get a list of rooms that federate with a given remote homeserver. (#11658)
• Add a config flag to inhibit M_USER_IN_USE during registration. (#11743)
• Add a module callback to set username at registration. (#11790)
• Allow configuring a maximum file size as well as a list of allowed content types for avatars. (#11846)

Bugfixes

• Include the bundled aggregations in the /sync response, per MSC2675. (#11612)
• Fix a long-standing bug when previewing Reddit URLs which do not contain an image. (#11767)
• Fix a long-standing bug that media streams could cause long-lived connections when generating URL previews. (#11784)
• Include a prev_content field in state events sent to Application Services. Contributed by @totallynotvaishnav. (#11798)
• Fix a bug introduced in Synapse 0.33.3 causing requests to sometimes log strings such as HTTPStatus.OK instead of integer status codes. (#11827)

Improved Documentation

• Update pypi installation docs to indicate that we now support Python 3.10. (#11820)
• Add missing steps to the contribution submission process in the documentation. Contributed by @sequentialread. (#11821)
• Remove not needed old table of contents in documentation. (#11860)
• Consolidate the access_token information at the top of each relevant page in the Admin API documentation. (#11861)

Deprecations and Removals

• Drop support for Python 3.6, which is EOL. (#11683)
• Remove the experimental_msc1849_support_enabled flag as the features are now stable. (#11843)

Internal Changes

• Preparation for database schema simplifications: add state_key and rejection_reason columns to events table. (#11792)
• Add FrozenEvent.get_state_key and use it in a couple of places. (#11793)
• Preparation for database schema simplifications: stop reading from event_reference_hashes. (#11794)
• Drop unused table public_room_list_stream. (#11795)
• Preparation for reducing Postgres serialization errors: allow setting transaction isolation level. Contributed by Nick @ Beeper. (#11799, #11847)
• Docker: skip the initial amd64-only build and go straight to multiarch. (#11810)
• Run Complement on the Github Actions VM and not inside a Docker container. (#11811)
• Log module names at startup. (#11813)
• Improve type safety of bundled aggregations code. (#11815)
• Correct a type annotation in the event validation logic. (#11817, #11830)
• Minor updates and documentation for database schema delta files. (#11823)
• Workaround a type annotation problem in prometheus_client 0.13.0. (#11834)
• Minor performance improvement in room state lookup. (#11836)
• Fix some indentation inconsistencies in the sample config. (#11838)
• Add type hints to tests/rest/admin. (#11851)