Synapse 1.63.0rc1 (2022-07-12)

Features

• Add a rate limit for local users sending invites. (#13125)
• Implement MSC3827: Filtering of /publicRooms by room type. (#13031)
• Improve validation logic in Synapse's REST endpoints. (#13148)

Bugfixes

• Fix a long-standing bug where application services were not able to join remote federated rooms without a profile. (#13131)
• Fix a long-standing bug where _get_state_map_for_room might raise errors when third party event rules callbacks are present. (#13174)
• Fix a long-standing bug where the synapse_port_db script could fail to copy rows with negative row ids. (#13226)
• Fix a bug introduced in 1.54.0 where appservices would not receive room-less EDUs, like presence, when both MSC2409 and MSC3202 are enabled. (#13236)
• Fix a bug introduced in 1.62.0 where rows were not deleted from event_push_actions table on large servers. (#13194)
• Fix a bug introduced in 1.62.0 where notification counts would get stuck after a highlighted message. (#13223)
• Fix exception when using experimental MSC3030 /timestamp_to_event endpoint to look for remote federated imported events before room creation. (#13197)
• Fix MSC3202-enabled appservices not receiving to-device messages, preventing messages from being decrypted. (#13235)

Updates to the Docker image

• Bump the version of lxml in matrix.org Docker images Debian packages from 4.8.0 to 4.9.1. (#13207)

Improved Documentation

• Add an explanation of the --report-stats argument to the docs. (#13029)
• Add a helpful example bash script to the contrib directory for creating multiple worker configuration files of the same type. Contributed by @villepeh. (#13032)
• Add missing links to config options. (#13166)
• Add documentation for anonymised homeserver statistics collection. (#13086)
• Add documentation for the existing databases option in the homeserver configuration manual. (#13212)
• Clean up references to sample configuration and redirect users to the configuration manual instead. (#13077, #13139)
• Document how the Synapse team does reviews. (#13132)
• Fix wrong section header for allow_public_rooms_over_federation in the homeserver config documentation. (#13116)

Deprecations and Removals

• Remove obsolete and for 8 years unused RoomEventsStoreTestCase. Contributed by @arkamar. (#13200)

Internal Changes

• Add type annotations to synapse.logging, tests.server and tests.utils. (#13028, #13103, #13159, #13136)
• Enforce type annotations for tests.test_server. (#13135)
• Support temporary experimental return values for spam checker module callbacks. (#13044)
• Add support to complement.sh for skipping the docker build. (#13143, #13158)
• Add support to complement.sh for setting the log level using the SYNAPSE_TEST_LOG_LEVEL environment variable. (#13152)
• Enable Complement testing in the 'Twisted Trunk' CI runs. (#13079, #13157)
• Improve startup times in Complement test runs against workers, particularly in CPU-constrained environments. (#13127)
• Update config used by Complement to allow device name lookup over federation. (#13167)
• Faster room joins: handle race between persisting an event and un-partial stating a room. (#13100)
• Faster room joins: fix race in recalculation of current room state. (#13151)
• Faster room joins: skip waiting for full state when processing incoming events over federation. (#13144)
• Raise a DependencyError on missing dependencies instead of a ConfigError. (#13113)
• Avoid stripping line breaks from SQL sent to the database. (#13129)
• Apply ratelimiting earlier in processing of /send requests. (#13134)
• Improve exception handling when processing events received over federation. (#13145)
• Check that auto_vacuum is disabled when porting a SQLite database to Postgres, as VACUUMs must not be performed between runs of the script. (#13195)
• Reduce DB usage of /sync when a large number of unread messages have recently been sent in a room. (#13119, #13153)
• Reduce memory consumption when processing incoming events in large rooms. (#13078, #13222)
• Reduce number of queries used to get profile information. Contributed by Nick @ Beeper (@Fizzadar). (#13209)
• Reduce number of events queried during room creation. Contributed by Nick @ Beeper (@Fizzadar). (#13210)
• More aggressively rotate push actions. (#13211)
• Add max_line_length setting for Python files to the .editorconfig. Contributed by @sumnerevans @ Beeper. (#13228)