Synapse 1.76.0rc2 (2023-01-27)

The 1.76 release is the first to enable faster joins (MSC3706 and MSC3902) by default. Admins can opt-out: see the upgrade notes for more details.

The upgrade from 1.75 to 1.76 changes the account data replication streams in a backwards-incompatible manner. Server operators running a multi-worker deployment should consult the upgrade notes.

Those who are poetry installing from source using our lockfile should ensure their poetry version is 1.3.2 or higher; see upgrade notes.

Bugfixes

• Faster joins: Fix a bug introduced in Synapse 1.69 where device list EDUs could fail to be handled after a restart when a faster join sync is in progress. (#14914)

Internal Changes

• Faster joins: Improve performance of looking up partial-state status of rooms. (#14917)