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+++ title = "Synapse 1.3.0 released" path = "/blog/2019/08/15/synapse-1-3-0-released"

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

[extra] image = "https://matrix.org/blog/img/2019-08-15-message-send.png" +++

Well now, Synapse 1.3.0 is here.

The main thing to know about 1.3.0 is that is contains performance improvements to reduce disk I/O and reduce RAM usage. We’ve been running it on matrix.org for a week or so and are really pleased with the results.

Check out our message send heat map.

Message Send

Other than that there are a bunch of bug fixes and tweaks to generally make things run more smoothly.

As ever, you can get the new update here or any of the sources mentioned at https://github.com/matrix-org/synapse. Also, check out our Synapse installation guide page

The changelog since 1.2.1 follows:

Synapse 1.3.0 (2019-08-15)

Bugfixes

  • Fix 500 Internal Server Error on publicRooms when the public room list was cached. (#5851)

Synapse 1.3.0rc1 (2019-08-13)

Features

  • Use M_USER_DEACTIVATED instead of M_UNKNOWN for errcode when a deactivated user attempts to login. (#5686)
  • Add sd_notify hooks to ease systemd integration and allows usage of Type=Notify. (#5732)
  • Synapse will no longer serve any media repo admin endpoints when enable_media_repo is set to False in the configuration. If a media repo worker is used, the admin APIs relating to the media repo will be served from it instead. (#5754, #5848)
  • Synapse can now be configured to not join remote rooms of a given "complexity" (currently, state events) over federation. This option can be used to prevent adverse performance on resource-constrained homeservers. (#5783)
  • Allow defining HTML templates to serve the user on account renewal attempt when using the account validity feature. (#5807)

Bugfixes

  • Fix UISIs during homeserver outage. (#5693, #5789)
  • Fix stack overflow in server key lookup code. (#5724)
  • start.sh no longer uses deprecated cli option. (#5725)
  • Log when we receive an event receipt from an unexpected origin. (#5743)
  • Fix debian packaging scripts to correctly build sid packages. (#5775)
  • Correctly handle redactions of redactions. (#5788)
  • Return 404 instead of 403 when accessing /rooms/{roomId}/event/{eventId} for an event without the appropriate permissions. (#5798)
  • Fix check that tombstone is a state event in push rules. (#5804)
  • Fix error when trying to login as a deactivated user when using a worker to handle login. (#5806)
  • Fix bug where user /sync stream could get wedged in rare circumstances. (#5825)
  • The purge_remote_media.sh script was fixed. (#5839)

Deprecations and Removals

  • Synapse now no longer accepts the -v/--verbose, -f/--log-file, or --log-config command line flags, and removes the deprecated verbose and log_file configuration file options. Users of these options should migrate their options into the dedicated log configuration. (#5678, #5729)
  • Remove non-functional 'expire_access_token' setting. (#5782)

Internal Changes

  • Make Jaeger fully configurable. (#5694)
  • Add precautionary measures to prevent future abuse of window.opener in default welcome page. (#5695)
  • Reduce database IO usage by optimising queries for current membership. (#5706, #5738, #5746, #5752, #5770, #5774, #5792, #5793)
  • Improve caching when fetching get_filtered_current_state_ids. (#5713)
  • Don't accept opentracing data from clients. (#5715)
  • Speed up PostgreSQL unit tests in CI. (#5717)
  • Update the coding style document. (#5719)
  • Improve database query performance when recording retry intervals for remote hosts. (#5720)
  • Add a set of opentracing utils. (#5722)
  • Cache result of get_version_string to reduce overhead of /version federation requests. (#5730)
  • Return 'user_type' in admin API user endpoints results. (#5731)
  • Don't package the sytest test blacklist file. (#5733)
  • Replace uses of returnValue with plain return, as returnValue is not needed on Python 3. (#5736)
  • Blacklist some flakey tests in worker mode. (#5740)
  • Fix some error cases in the caching layer. (#5749)
  • Add a prometheus metric for pending cache lookups. (#5750)
  • Stop trying to fetch events with event_id=None. (#5753)
  • Convert RedactionTestCase to modern test style. (#5768)
  • Allow looping calls to be given arguments. (#5780)
  • Set the logs emitted when checking typing and presence timeouts to DEBUG level, not INFO. (#5785)
  • Remove DelayedCall debugging from the test suite, as it is no longer required in the vast majority of Synapse's tests. (#5787)
  • Remove some spurious exceptions from the logs where we failed to talk to a remote server. (#5790)
  • Improve performance when making .well-known requests by sharing the SSL options between requests. (#5794)
  • Disable codecov GitHub comments on PRs. (#5796)
  • Don't allow clients to send tombstone events that reference the room it's sent in. (#5801)
  • Deny redactions of events sent in a different room. (#5802)
  • Deny sending well known state types as non-state events. (#5805)
  • Handle incorrectly encoded query params correctly by returning a 400. (#5808)
  • Handle pusher being deleted during processing rather than logging an exception. (#5809)
  • Return 502 not 500 when failing to reach any remote server. (#5810)
  • Reduce global pauses in the events stream caused by expensive state resolution during persistence. (#5826)
  • Add a lower bound to well-known lookup cache time to avoid repeated lookups. (#5836)
  • Whitelist history visibility sytests in worker mode tests. (#5843)