Synapse 1.85.0rc1 (2023-05-30)

Features

• Improve performance of backfill requests by performing backfill of previously failed requests in the background. (#15585)
• Add a new admin API to create a new device for a user. (#15611)
• Add Unix socket support for Redis connections. Contributed by Jason Little. (#15644)

Bugfixes

• Fix a long-standing bug where setting the read marker could fail when using message retention. Contributed by Nick @ Beeper (@Fizzadar). (#15464)
• Fix a long-standing bug where the url_preview_url_blacklist configuration setting was not applied to oEmbed or image URLs found while previewing a URL. (#15601)
• Fix a long-standing bug where filters with multiple backslashes were rejected. (#15607)
• Fix a bug introduced in Synapse 1.82.0 where the error message displayed when validation of the app_service_config_files config option fails would be incorrectly formatted. (#15614)
• Fix a long-standing bug where deactivated users were still able to login using the custom org.matrix.login.jwt login type (if enabled). (#15624)
• Fix a long-standing bug where deactivated users were able to login in uncommon situations. (#15634)

Improved Documentation

• Warn users that at least 3.75GB of space is needed for the nix Synapse development environment. (#15613)
• Remove outdated comment from the generated and sample homeserver log configs. (#15648)
• Improve contributor docs to make it more clear that Rust is a necessary prerequisite. Contributed by @grantm. (#15668)

Deprecations and Removals

• Remove the old version of the R30 (30-day retained users) phone-home metric. (#10428)

Internal Changes

• Create dependabot changelogs at release time. (#15481)
• Add not null constraint to column full_user_id of tables profiles and user_filters. (#15537)
• Allow connecting to HTTP Replication Endpoints by using worker_name when constructing the request. (#15578)
• Make the thread_id column on event_push_actions, event_push_actions_staging, and event_push_summary non-null. (#15597)
• Run mypy type checking with the minimum supported Python version to catch new usage that isn't backwards-compatible. (#15602)
• Fix subscriptable type usage in Python <3.9. (#15604)
• Update internal terminology. (#15606, #15620)
• Instrument state and state_group storage-related operations to better picture what's happening when tracing. (#15610, #15647)
• Trace how many new events from the backfill response we need to process. (#15633)
• Re-type config paths in ConfigErrors to be StrSequences instead of Iterable[str]s. (#15615)
• Update Mutual Rooms (MSC2666) implementation to match new proposal text. (#15621)
• Remove the unstable identifiers from faster joins (MSC3706). (#15625)
• Fix the olddeps CI. (#15626)
• Remove duplicate timestamp from test logs (_trial_temp/test.log). (#15636)
• Fix two memory leaks in trial test runs. (#15630)
• Limit the size of the HomeServerConfig cache in trial test runs. (#15646)
• Improve type hints. (#15658, #15659)
• Add requesting user id parameter to key claim methods in TransportLayerClient. (#15663)
• Speed up rebuilding of the user directory for local users. (#15665)
• Implement "option 2" for MSC3820: Room version 11. (#15666, #15678)

Updates to locked dependencies

• Bump furo from 2023.3.27 to 2023.5.20. (#15642)
• Bump log from 0.4.17 to 0.4.18. (#15681)
• Bump prometheus-client from 0.16.0 to 0.17.0. (#15682)
• Bump pydantic from 1.10.7 to 1.10.8. (#15685)
• Bump pygithub from 1.58.1 to 1.58.2. (#15643)
• Bump requests from 2.28.2 to 2.31.0. (#15651)
• Bump sphinx from 6.1.3 to 6.2.1. (#15641)
• Bump types-bleach from 6.0.0.1 to 6.0.0.3. (#15686)
• Bump types-pillow from 9.5.0.2 to 9.5.0.4. (#15640)
• Bump types-pyyaml from 6.0.12.9 to 6.0.12.10. (#15683)
• Bump types-requests from 2.30.0.0 to 2.31.0.0. (#15684)
• Bump types-setuptools from 67.7.0.2 to 67.8.0.0. (#15639)