v1.102.0rc1

Synapse 1.102.0rc1 (2024-02-20)

Features

• A metric was added for emails sent by Synapse, broken down by type: synapse_emails_sent_total. Contributed by Remi Rampin. (#16881)

Bugfixes

• Do not send multiple concurrent requests for keys for the same server. (#16894)
• Fix performance issue when joining very large rooms that can cause the server to lock up. Introduced in v1.100.0. (#16903)
• Always prefer unthreaded receipt when >1 exist (MSC4102). (#16927)

Improved Documentation

• Fix a small typo in the Rooms section of the Admin API documentation. Contributed by @RainerZufall187. (#16857)

Internal Changes

• Don't invalidate the entire event cache when we purge history. (#16905)
• Add experimental config option to not send device list updates for specific users. (#16909)
• Fix incorrect docker hub link in release script. (#16910)

Updates to locked dependencies

• Bump attrs from 23.1.0 to 23.2.0. (#16899)
• Bump bcrypt from 4.0.1 to 4.1.2. (#16900)
• Bump pygithub from 2.1.1 to 2.2.0. (#16902)
• Bump sentry-sdk from 1.40.0 to 1.40.3. (#16898)