Synapse 1.59.0rc1 (2022-05-10)

This release makes several changes that server administrators should be aware of:

Device name lookup over federation is now disabled by default. (#12616)
The synapse.app.appservice and synapse.app.user_dir worker application types are now deprecated. (#12452, #12654)

Additionally, this release removes the non-standard m.login.jwt login type from Synapse. It can be replaced with org.matrix.login.jwt for identical behaviour. This is only used if jwt_config.enabled is set to true in the configuration. (#12597)

Features

Support MSC3266 room summaries over federation. (#11507)
Implement changes to MSC2285 (hidden read receipts). Contributed by @SimonBrandner. (#12168, #12635, #12636, #12670)
Extend the module API to allow modules to change actions for existing push rules of local users. (#12406)
Add the notify_appservices_from_worker configuration option (superseding notify_appservices) to allow a generic worker to be designated as the worker to send traffic to Application Services. (#12452)
Add the update_user_directory_from_worker configuration option (superseding update_user_directory) to allow a generic worker to be designated as the worker to update the user directory. (#12654)
Add new enable_registration_token_3pid_bypass configuration option to allow registrations via token as an alternative to verifying a 3pid. (#12526)
Implement MSC3786: Add a default push rule to ignore m.room.server_acl events. (#12601)
Add new mau_appservice_trial_days configuration option to specify a different trial period for users registered via an appservice. (#12619)

Bugfixes

Fix a bug introduced in Synapse 1.48.0 where the latest thread reply provided failed to include the proper bundled aggregations. (#12273)
Fix a bug introduced in Synapse 1.22.0 where attempting to send a large amount of read receipts to an application service all at once would result in duplicate content and abnormally high memory usage. Contributed by Brad & Nick @ Beeper. (#12544)
Fix a bug introduced in Synapse 1.57.0 which could cause Failed to calculate hosts in room errors to be logged for outbound federation. (#12570)
Fix a long-standing bug where status codes would almost always get logged as 200!, irrespective of the actual status code, when clients disconnect before a request has finished processing. (#12580)
Fix race when persisting an event and deleting a room that could lead to outbound federation breaking. (#12594)
Fix a bug introduced in Synapse 1.53.0 where bundled aggregations for annotations/edits were incorrectly calculated. (#12633)
Fix a long-standing bug where rooms containing power levels with string values could not be upgraded. (#12657)
Prevent memory leak from reoccurring when presence is disabled. (#12656)

Updates to the Docker image

Explicitly opt-in to using BuildKit-specific features in the Dockerfile. This fixes issues with building images in some GitLab CI environments. (#12541)
Update the "Build docker images" GitHub Actions workflow to use docker/metadata-action to generate docker image tags, instead of a custom shell script. Contributed by @henryclw. (#12573)

Improved Documentation

Update SQL statements and replace use of old table user_stats_historical in docs for Synapse Admins. (#12536)
Add missing linebreak to pipx install instructions. (#12579)
Add information about the TCP replication module to docs. (#12621)
Fixes to the formatting of README.rst. (#12627)
Fix docs on how to run specific Complement tests using the complement.sh test runner. (#12664)

Deprecations and Removals

Remove unstable identifiers from MSC3069. (#12596)
Remove the unspecified m.login.jwt login type and the unstable uk.half-shot.msc2778.login.application_service from
MSC2778. (#12597)
Synapse now requires at least Python 3.7.1 (up from 3.7.0), for compatibility with the latest Twisted trunk. (#12613)

Internal Changes

Use supervisord to supervise Postgres and Caddy in the Complement image to reduce restart time. (#12480)
Immediately retry any requests that have backed off when a server comes back online. (#12500)
Use make_awaitable instead of defer.succeed for return values of mocks in tests. (#12505)
Consistently check if an object is a frozendict. (#12564)
Protect module callbacks with read semantics against cancellation. (#12568)
Improve comments and error messages around access tokens. (#12577)
Improve docstrings for the receipts store. (#12581)
Use constants for read-receipts in tests. (#12582)
Log status code of cancelled requests as 499 and avoid logging stack traces for them. (#12587, #12663)
Remove special-case for twisted logger from default log config. (#12589)
Use getClientAddress instead of the deprecated getClientIP. (#12599)
Add link to documentation in Grafana Dashboard. (#12602)
Reduce log spam when running multiple event persisters. (#12610)
Add extra debug logging to federation sender. (#12614)
Prevent remote homeservers from requesting local user device names by default. (#12616)
Add a consistency check on events which we read from the database. (#12620)
Remove use of the constantly library and switch to enums for EventRedactBehaviour. Contributed by @andrewdoh. (#12624)
Remove unused code related to receipts. (#12632)
Minor improvements to the scripts for running Synapse in worker mode under Complement. (#12637)
Move pympler back in to the all extras. (#12652)
Fix spelling of M_UNRECOGNIZED in comments. (#12665)
Release script: confirm the commit to be tagged before tagging. (#12556)
Fix a typo in the announcement text generated by the Synapse release development script. (#12612)

Typechecking

Fix scripts-dev to pass typechecking. (#12356)
Add some type hints to datastore. (#12485)
Remove unused # type: ignores. (#12531)
Allow unused # type: ignore comments in bleeding edge CI jobs. (#12576)
Remove redundant lines of config from mypy.ini. (#12608)
Update to mypy 0.950. (#12650)
Use Concatenate to better annotate _do_execute. (#12666)
Use ParamSpec to refine type hints. (#12667)
Fix mypy against latest pillow stubs. (#12671)

matrix-org/synapse v1.59.0rc1 on GitHub