Synapse 0.27.3 released!

Today we release Synapse 0.27.3!

Hot on the heels of 0.27.2, notable changes include API support for joining groups/communities as well as a major bug fix (#3082), that is particularly important for those upgrading for the first time in a while. Also new metrics and phone home stats. Phone home stats include better visibility of system usage so we can have a better idea of how synapse's RAM and CPU is behaving in the wild. Also, recording the number of users on the server who have been using it for at least 30 days.

Phone home stats are entirely optional and can be enabled/disabled by setting "report_ stat s" in homeserver.yaml.  Please consider enabling phone home stats if you currently have not done so - this data is really important to us in improving Matrix as a whole (and justifying future funding for Matrix.org).

As always, you can get it from https://github.com/matrix-org/synapse/releases/tag/v0.27.3 and thanks to everyone who tested the release candidates.

Changes in synapse v0.27.3 (2018-04-11)

Bug fixes:

• URL quote path segments over federation (#3082)

Changes in synapse v0.27.3-rc2 (2018-04-09)

v0.27.3-rc1 used a stale version of the develop branch so the changelog overstates the functionality. v0.27.3-rc2 is up to date, rc1 should be ignored.

Changes in synapse v0.27.3-rc1 (2018-04-09)

Notable changes include API support for joinability of groups. Also new metrics and phone home stats. Phone home stats include better visibility of system usage so we can tweak synpase to work better for all users rather than our own experience with matrix.org. Also, recording 'r30' stat which is the measure we use to track overall growth of the Matrix ecosystem. It is defined as:-

Counts the number of native 30 day retained users, defined as:-

• Users who have created their accounts more than 30 days
• Where last seen at most 30 days ago
• Where account creation and last_seen are > 30 days"

Features:

• Add joinability for groups (PR #3045)
• Implement group join API (PR #3046)
• Add counter metrics for calculating state delta (PR #3033)
• R30 stats (PR #3041)
• Measure time it takes to calculate state group ID (PR #3043)
• Add basic performance statistics to phone home (PR #3044)
• Add response size metrics (PR #3071)
• phone home cache size configurations (PR #3063)

• Add a blurb explaining the main synapse worker (PR #2886) Thanks to @turt2live!
• Replace old style error catching with 'as' keyword (PR #3000) Thanks to @NotAFile!
• Use .iter* to avoid copies in StateHandler (PR #3006)
• Linearize calls to _generate_user_id (PR #3029)
• Remove last usage of ujson (PR #3030)
• Use simplejson throughout (PR #3048)
• Use static JSONEncoders (PR #3049)
• Remove uses of events.content (PR #3060)
• Improve database cache performance (PR #3068)

• Add room_id to the response of rooms/{'{'}roomId{'}'}/join (PR #2986) Thanks to @jplatte!
• Fix replication after switch to simplejson (PR #3015)
• Fix replication after switch to simplejson (PR #3015)
• 404 correctly on missing paths via NoResource (PR #3022)
• Fix error when claiming e2e keys from offline servers (PR #3034)
• fix tests/storage/test_user_directory.py (PR #3042)
• use PUT instead of POST for federating groups/m.join_policy (PR #3070) Thanks to @krombel!
• postgres port script: fix state_groups_pkey error (PR #3072)