Synapse 1.36.0rc1 (2021-06-08)

Features

Add new endpoint /_matrix/client/r0/rooms/{roomId}/aliases from Client-Server API r0.6.1 (previously MSC2432). (#9224)
Improve performance of incoming federation transactions in large rooms. (#9953, #9973)
Rewrite logic around verifying JSON object and fetching server keys to be more performant and use less memory. (#10035)
Add new admin APIs for unprotecting local media from quarantine. Contributed by @dklimpel. (#10040)
Add new admin APIs to remove media by media ID from quarantine. Contributed by @dklimpel. (#10044)
Make reason and score parameters optional for reporting content. Implements MSC2414. Contributed by Callum Brown. (#10077)
Add support for routing more requests to workers. (#10084)
Report OpenTracing spans for database activity. (#10113, #10136, #10141)
Significantly reduce memory usage of joining large remote rooms. (#10117)

Fixed a bug causing replication requests to fail when receiving a lot of events via federation. (#10082)
Fix a bug in the force_tracing_for_users option introduced in Synapse v1.35 which meant that the OpenTracing spans produced were missing most tags. (#10092)
Fixed a bug that could cause Synapse to stop notifying application services. Contributed by Willem Mulder. (#10107)
Fix bug where the server would attempt to fetch the same history in the room from a remote server multiple times in parallel. (#10116)
Fix a bug introduced in Synapse 1.33.0 which caused replication requests to fail when receiving a lot of very large events via federation. (#10118)
Fix bug when using workers where pagination requests failed if a remote server returned zero events from /backfill. Introduced in 1.35.0. (#10133)

Clarify security note regarding hosting Synapse on the same domain as other web applications. (#9221)
Update CAPTCHA documentation to mention turning off the verify origin feature. Contributed by @aaronraimist. (#10046)
Tweak wording of database recommendation in INSTALL.md. Contributed by @aaronraimist. (#10057)
Add initial infrastructure for rendering Synapse documentation with mdbook. (#10086)
Convert the remaining Admin API documentation files to markdown. (#10089)
Make a link in docs use HTTPS. Contributed by @RhnSharma. (#10130)
Fix broken link in Docker docs. (#10132)

Remove the experimental spaces_enabled flag. The spaces features are always available now. (#10063)

Tell CircleCI to build Docker images from main branch. (#9906)
Simplify naming convention for release branches to only include the major and minor version numbers. (#10013)
Add parse_strings_from_args for parsing an array from query parameters. (#10048, #10137)
Remove some dead code regarding TLS certificate handling. (#10054)
Remove redundant, unmaintained convert_server_keys script. (#10055)
Improve the error message printed by synctl when synapse fails to start. (#10059)
Fix GitHub Actions lint for newsfragments. (#10069)
Update opentracing to inject the right context into the carrier. (#10074)
Fix up BatchingQueue implementation. (#10078)
Log method and path when dropping request due to size limit. (#10091)
In Github Actions workflows, summarize the Sytest results in an easy-to-read format. (#10094)
Make /sync do fewer state resolutions. (#10102)
Add missing type hints to the admin API servlets. (#10105)
Improve opentracing annotations for Notifier. (#10111)
Enable Prometheus metrics for the jaeger client library. (#10112)
Work to improve the responsiveness of /sync requests. (#10124)
OpenTracing: use a consistent name for background processes. (#10135)