matrix.org/content/blog/2020/10/2020-10-13-synapse-1-21-1-r...

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+++ title = "Synapse 1.21.1 released" path = "/blog/2020/10/13/synapse-1-21-1-released"

[taxonomies] author = ["Neil Johnson"] category = ["Releases"] +++

Synapse 1.21.1 has landed!

Highlights of 1.21.1 include:-

  • Add experimental support for sharding event persister. (#8294, #8387, #8396, #8419)

  • Add experimental prometheus metric to track numbers of "large" rooms for state resolutiom. (#8425)

  • Add prometheus metrics to track federation delays. (#8430)

  • Fix messages not being sent over federation until an event is sent into the same room. (#8230, #8247, #8258, #8272, #8322)

We've also made some improvements to SSO and added new admin APIs.

Get the new releases from any of the usual sources mentioned at https://github.com/matrix-org/synapse/blob/master/INSTALL.md. 1.21.1 is on github here

The changelog for 1.21.1 is as follows:

Synapse 1.21.1 (2020-10-13)

This release fixes a regression in v1.21.0 that prevented debian packages from being built.

It is otherwise identical to v1.21.0.

Synapse 1.21.0 (2020-10-12)

No significant changes since v1.21.0rc3.

As noted in v1.20.0, a future release will drop support for accessing Synapse's Admin API under the /_matrix/client/* endpoint prefixes. At that point, the Admin API will only be accessible under /_synapse/admin.

Synapse 1.21.0rc3 (2020-10-08)

Bugfixes

  • Fix duplication of events on high traffic servers, caused by PostgreSQL could not serialize access due to concurrent update errors. (#8456)

Internal Changes

  • Add Groovy Gorilla to the list of distributions we build .debs for. (#8475)

Synapse 1.21.0rc2 (2020-10-02)

Features

  • Convert additional templates from inline HTML to Jinja2 templates. (#8444)

Bugfixes

  • Fix a regression in v1.21.0rc1 which broke thumbnails of remote media. (#8438)
  • Do not expose the experimental uk.half-shot.msc2778.login.application_service flow in the login API, which caused a compatibility problem with Element iOS. (#8440)
  • Fix malformed log line in new federation "catch up" logic. (#8442)
  • Fix DB query on startup for negative streams which caused long start up times. Introduced in #8374. (#8447)

Synapse 1.21.0rc1 (2020-10-01)

Features

  • Require the user to confirm that their password should be reset after clicking the email confirmation link. (#8004)
  • Add an admin API GET /_synapse/admin/v1/event_reports to read entries of table event_reports. Contributed by @dklimpel. (#8217)
  • Consolidate the SSO error template across all configuration. (#8248, #8405)
  • Add a configuration option to specify a whitelist of domains that a user can be redirected to after validating their email or phone number. (#8275, #8417)
  • Add experimental support for sharding event persister. (#8294, #8387, #8396, #8419)
  • Add the room topic and avatar to the room details admin API. (#8305)
  • Add an admin API for querying rooms where a user is a member. Contributed by @dklimpel. (#8306)
  • Add uk.half-shot.msc2778.login.application_service login type to allow appservices to login. (#8320)
  • Add a configuration option that allows existing users to log in with OpenID Connect. Contributed by @BBBSnowball and @OmmyZhang. (#8345)
  • Add prometheus metrics for replication requests. (#8406)
  • Support passing additional single sign-on parameters to the client. (#8413)
  • Add experimental reporting of metrics on expensive rooms for state-resolution. (#8420)
  • Add experimental prometheus metric to track numbers of "large" rooms for state resolutiom. (#8425)
  • Add prometheus metrics to track federation delays. (#8430)

Bugfixes

  • Fix a bug in the media repository where remote thumbnails with the same size but different crop methods would overwrite each other. Contributed by @deepbluev7. (#7124)
  • Fix inconsistent handling of non-existent push rules, and stop tracking the enabled state of removed push rules. (#7796)
  • Fix a longstanding bug when storing a media file with an empty upload_name. (#7905)
  • Fix messages not being sent over federation until an event is sent into the same room. (#8230, #8247, #8258, #8272, #8322)
  • Fix a longstanding bug where files that could not be thumbnailed would result in an Internal Server Error. (#8236, #8435)
  • Upgrade minimum version of canonicaljson to version 1.4.0, to fix an unicode encoding issue. (#8262)
  • Fix longstanding bug which could lead to incomplete database upgrades on SQLite. (#8265)
  • Fix stack overflow when stderr is redirected to the logging system, and the logging system encounters an error. (#8268)
  • Fix a bug which cause the logging system to report errors, if DEBUG was enabled and no context filter was applied. (#8278)
  • Fix edge case where push could get delayed for a user until a later event was pushed. (#8287)
  • Fix fetching malformed events from remote servers. (#8324)
  • Fix UnboundLocalError from occurring when appservices send a malformed register request. (#8329)
  • Don't send push notifications to expired user accounts. (#8353)
  • Fix a regression in v1.19.0 with reactivating users through the admin API. (#8362)
  • Fix a bug where during device registration the length of the device name wasn't limited. (#8364)
  • Include guest_access in the fields that are checked for null bytes when updating room_stats_state. Broke in v1.7.2. (#8373)
  • Fix theoretical race condition where events are not sent down /sync if the synchrotron worker is restarted without restarting other workers. (#8374)
  • Fix a bug which could cause errors in rooms with malformed membership events, on servers using sqlite. (#8385)
  • Fix "Re-starting finished log context" warning when receiving an event we already had over federation. (#8398)
  • Fix incorrect handling of timeouts on outgoing HTTP requests. (#8400)
  • Fix a regression in v1.20.0 in the synapse_port_db script regarding the ui_auth_sessions_ips table. (#8410)
  • Remove unnecessary 3PID registration check when resetting password via an email address. Bug introduced in v0.34.0rc2. (#8414)

Improved Documentation

  • Add /_synapse/client to the reverse proxy documentation. (#8227)
  • Add note to the reverse proxy settings documentation about disabling Apache's mod_security2. Contributed by Julian Fietkau (@jfietkau). (#8375)
  • Improve description of server_name config option in homserver.yaml. (#8415)

Deprecations and Removals

  • Drop support for prometheus_client older than 0.4.0. (#8426)

Internal Changes

  • Fix tests on distros which disable TLSv1.0. Contributed by @danc86. (#8208)
  • Simplify the distributor code to avoid unnecessary work. (#8216)
  • Remove the populate_stats_process_rooms_2 background job and restore functionality to populate_stats_process_rooms. (#8243)
  • Clean up type hints for PaginationConfig. (#8250, #8282)
  • Track the latest event for every destination and room for catch-up after federation outage. (#8256)
  • Fix non-user visible bug in implementation of MultiWriterIdGenerator.get_current_token_for_writer. (#8257)
  • Switch to the JSON implementation from the standard library. (#8259)
  • Add type hints to synapse.util.async_helpers. (#8260)
  • Simplify tests that mock asynchronous functions. (#8261)
  • Add type hints to StreamToken and RoomStreamToken classes. (#8279)
  • Change StreamToken.room_key to be a RoomStreamToken instance. (#8281)
  • Refactor notifier code to correctly use the max event stream position. (#8288)
  • Use slotted classes where possible. (#8296)
  • Support testing the local Synapse checkout against the Complement homeserver test suite. (#8317)
  • Update outdated usages of metaclass to python 3 syntax. (#8326)
  • Move lint-related dependencies to package-extra field, update CONTRIBUTING.md to utilise this. (#8330, #8377)
  • Use the admin_patterns helper in additional locations. (#8331)
  • Fix test logging to allow braces in log output. (#8335)
  • Remove __future__ imports related to Python 2 compatibility. (#8337)
  • Simplify super() calls to Python 3 syntax. (#8344)
  • Fix bad merge from release-v1.20.0 branch to develop. (#8354)
  • Factor out a _send_dummy_event_for_room method. (#8370)
  • Improve logging of state resolution. (#8371)
  • Add type annotations to SimpleHttpClient. (#8372)
  • Refactor ID generators to use async with syntax. (#8383)
  • Add EventStreamPosition type. (#8388)
  • Create a mechanism for marking tests "logcontext clean". (#8399)
  • A pair of tiny cleanups in the federation request code. (#8401)
  • Add checks on startup that PostgreSQL sequences are consistent with their associated tables. (#8402)
  • Do not include appservice users when calculating the total MAU for a server. (#8404)
  • Typing fixes for synapse.handlers.federation. (#8422)
  • Various refactors to simplify stream token handling. (#8423)
  • Make stream token serializing/deserializing async. (#8427)