Synapse 1.77.0rc1 (2023-02-07)

Features

• Experimental support for MSC3952: intentional mentions. (#14823, #14943, #14957, #14958)
• Experimental support to suppress notifications from message edits (MSC3958). (#14960, #15016)
• Add profile information, devices and connections to the command line user data export tool. (#14894)
• Improve performance when joining or sending an event in large rooms. (#14962)
• Improve performance of joining and leaving large rooms with many local users. (#14971)

Bugfixes

• Fix a bug introduced in Synapse 1.53.0 where next_batch tokens from /sync could not be used with the /relations endpoint. (#14866)
• Fix a bug introduced in Synapse 1.35.0 where the module API's send_local_online_presence_to would fail to send presence updates over federation. (#14880)
• Fix a bug introduced in Synapse 1.70.0 where the background updates to add non-thread unique indexes on receipts could fail when upgrading from 1.67.0 or earlier. (#14915)
• Fix a regression introduced in Synapse 1.69.0 which can result in database corruption when database migrations are interrupted on sqlite. (#14926)
• Fix a bug introduced in Synapse 1.68.0 where we were unable to service remote joins in rooms with @room notification levels set to null in their (malformed) power levels. (#14942)
• Fix a bug introduced in Synapse 1.64.0 where boolean power levels were erroneously permitted in v10 rooms. (#14944)
• Fix a long-standing bug where sending messages on servers with presence enabled would spam "Re-starting finished log context" log lines. (#14947)
• Fix a bug introduced in Synapse 1.68.0 where logging from the Rust module was not properly logged. (#14976)
• Fix various long-standing bugs in Synapse's config, event and request handling where booleans were unintentionally accepted where an integer was expected. (#14945)

Internal Changes

• Add missing type hints. (#14879, #14886, #14887, #14904, #14927, #14956, #14983, #14984, #14985, #14987, #14988, #14990, #14991, #14992, #15007)
• Use StrCollection to avoid potential bugs with Collection[str]. (#14922)
• Allow running the complement tests suites with the asyncio reactor enabled. (#14858)
• Improve performance of /sync in a few situations. (#14908, #14970)
• Document how to handle Dependabot pull requests. (#14916)
• Fix typo in release script. (#14920)
• Update build system requirements to allow building with poetry-core 1.5.0. (#14949, #15019)
• Add an lnav config file for Synapse logs to /contrib/lnav. (#14953)
• Faster joins: Refactor internal handling of servers in room to never store an empty list. (#14954)
• Faster joins: tag v2/send_join/ requests to indicate if they served a partial join response. (#14950)
• Allow running cargo without the extension-module option. (#14965)
• Preparatory work for adding a denormalised event stream ordering column in the future. Contributed by Nick @ Beeper (@Fizzadar). (#14979, 9cd7610, f10caa7; see #15014)
• Add tests for _flatten_dict. (#14981, #15002)