Synapse 1.96.0rc1 (2023-10-31)

Features

• Add experimental support to allow multiple workers to write to receipts stream. (#16432)
• Add a new module API for controller presence. (#16544)
• Add a new module API callback that allows adding extra fields to events' unsigned section when sent down to clients. (#16549)
• Improve the performance of claiming encryption keys. (#16565, #16570)

Bugfixes

• Fixed a bug in the example Grafana dashboard that prevents it from finding the correct datasource. Contributed by @MichaelSasser. (#16471)
• Fix a long-standing, exceedingly rare edge case where the first event persisted by a new event persister worker might not be sent down /sync. (#16473, #16557, #16561, #16578, #16580)
• Fix long-standing bug where /sync incorrectly did not mark a room as limited in a sync requests when there were missing remote events. (#16485)
• Fix a bug introduced in Synapse 1.41 where HTTP(S) forward proxy authorization would fail when using basic HTTP authentication with a long username:password string. (#16504)
• Force TLS certificate verification in user registration script. (#16530)
• Fix long-standing bug where /sync could tightloop after restart when using SQLite. (#16540)
• Fix ratelimiting of message sending when using workers, where the ratelimit would only be applied after most of the work has been done. (#16558)
• Fix a long-standing bug where invited/knocking users would not leave during a room purge. (#16559)

Improved Documentation

• Improve documentation of presence router. (#16529)
• Add a sentence to the opentracing docs on how you can have jaeger in a different place than synapse. (#16531)
• Correctly describe the meaning of unspecified rule lists in the alias_creation_rules and room_list_publication_rules config options and improve their descriptions more generally. (#16541)
• Pin the recommended poetry version in contributors' guide. (#16550)
• Fix a broken link to the client breakdown in the README. (#16569)

Internal Changes

• Improve performance of delete device messages query, cf issue 16479. (#16492)
• Reduce memory allocations. (#16505)
• Improve replication performance when purging rooms. (#16510)
• Run tests against Python 3.12. (#16511)
• Run trial & integration tests in continuous integration when .ci directory is modified. (#16512)
• Remove duplicate call to mark remote server 'awake' when using a federation sending worker. (#16515)
• Enable dirty runs on Complement CI, which is significantly faster. (#16520)
• Stop deleting from an unused table. (#16521)
• Improve type hints. (#16526, #16551)
• Fix running unit tests on Twisted trunk. (#16528)
• Reduce some spurious logging in worker mode. (#16555)
• Stop porting a table in port db that we're going to nuke and rebuild anyway. (#16563)
• Deal with warnings from running complement in CI. (#16567)
• Allow building with setuptools_rust 1.8.0. (#16574)

Updates to locked dependencies

• Bump black from 23.10.0 to 23.10.1. (#16575)
• Bump black from 23.9.1 to 23.10.0. (#16538)
• Bump cryptography from 41.0.4 to 41.0.5. (#16572)
• Bump gitpython from 3.1.37 to 3.1.40. (#16534)
• Bump phonenumbers from 8.13.22 to 8.13.23. (#16576)
• Bump pygithub from 1.59.1 to 2.1.1. (#16535)

• Bump matrix-synapse-ldap3 from 0.2.2 to 0.3.0. (#16539)

• Bump serde from 1.0.189 to 1.0.190. (#16577)
• Bump setuptools-rust from 1.7.0 to 1.8.0. (#16574)
• Bump types-pillow from 10.0.0.3 to 10.1.0.0. (#16536)
• Bump types-psycopg2 from 2.9.21.14 to 2.9.21.15. (#16573)
• Bump types-requests from 2.31.0.2 to 2.31.0.10. (#16537)
• Bump urllib3 from 1.26.17 to 1.26.18. (#16516)