matrix.org/content/blog/2018/05/2018-05-18-synapse-0-29-1.md

+++ title = "Synapse 0.29.1 Released!" path = "/blog/2018/05/18/synapse-0-29-1"

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

It's release time people, not to be outdone by our friends on the Riot web team, Synapse v0.29.1 lands today.

v0.29.1 contains an officially supported docker image (many thanks to the contribution from @kaiyou), continued progress towards Python 3 (thanks to @NotAFile) - as well as a heap of refactorings and bug fixes.

Something worth noting is a potentially breaking change in the error code that /login returns in the Client Server API. Details follow, but the change closes a gap between Synapse behaviour and the spec.

We'd like to give huge thanks to Silvio Fricke and Andreas Peters for writing and maintaining Synapse's first Dockerfile, as well as allmende, jcgruenhage, ptman, and ilianaw for theirs!  The new Dockerfile from kaiyou has ended up being merged into the main synapse tree and we're going to try to maintain it going forwards, but folks should use whichever one they prefer.

You can pick it up from https://github.com/matrix-org/synapse/releases/tag/v0.29.1 and thanks to everyone who tested the release candidate.

Changes in synapse v0.29.1 (2018-05-17)

Changes:

• Update docker documentation (PR #3222)

Changes in synapse v0.29.0 (2018-05-16)

No changes since v0.29.0-rc1

Changes in synapse v0.29.0-rc1 (2018-05-14)

Potentially breaking change:

• Make Client-Server API return 401 for invalid token (PR #3161).This changes the Client-server spec to return a 401 error code instead of 403 when the access token is unrecognised. This is the behaviour required by the specification, but some clients may be relying on the old, incorrect behaviour.Thanks to @NotAFile for fixing this.

Features:

• Add a Dockerfile for synapse (PR #2846) Thanks to @kaiyou!

Changes - General:

• nuke-room-from-db.sh: added postgresql option and help (PR #2337) Thanks to @rubo77!
• Part user from rooms on account deactivate (PR #3201)
• Make 'unexpected logging context' into warnings (PR #3007)
• Set Server header in SynapseRequest (PR #3208)
• remove duplicates from groups tables (PR #3129)
• Improve exception handling for background processes (PR #3138)
• Add missing consumeErrors to improve exception handling (PR #3139)
• reraise exceptions more carefully (PR #3142)
• Remove redundant call to preserve_fn (PR #3143)
• Trap exceptions thrown within run_in_background (PR #3144)

Changes - Refactors:

• Refactor /context to reuse pagination storage functions (PR #3193)
• Refactor recent events func to use pagination func (PR #3195)
• Refactor pagination DB API to return concrete type (PR #3196)
• Refactor get_recent_events_for_room return type (PR #3198)
• Refactor sync APIs to reuse pagination API (PR #3199)
• Remove unused code path from member change DB func (PR #3200)
• Refactor request handling wrappers (PR #3203)
• transaction_id, destination defined twice (PR #3209) Thanks to @damir-manapov!
• Refactor event storage to prepare for changes in state calculations (PR #3141)
• Set Server header in SynapseRequest (PR #3208)
• Use deferred.addTimeout instead of time_bound_deferred (PR #3127, #3178)
• Use run_in_background in preference to preserve_fn (PR #3140)

Changes - Python 3 migration:

• Construct HMAC as bytes on py3 (PR #3156) Thanks to @NotAFile!
• run config tests on py3 (PR #3159) Thanks to @NotAFile!
• Open certificate files as bytes (PR #3084) Thanks to @NotAFile!
• Open config file in non-bytes mode (PR #3085) Thanks to @NotAFile!
• Make event properties raise AttributeError instead (PR #3102) Thanks to @NotAFile!
• Use six.moves.urlparse (PR #3108) Thanks to @NotAFile!
• Add py3 tests to tox with folders that work (PR #3145) Thanks to @NotAFile!
• Don't yield in list comprehensions (PR #3150) Thanks to @NotAFile!
• Move more xrange to six (PR #3151) Thanks to @NotAFile!
• make imports local (PR #3152) Thanks to @NotAFile!
• move httplib import to six (PR #3153) Thanks to @NotAFile!
• Replace stringIO imports with six (PR #3154, #3168) Thanks to @NotAFile!
• more bytes strings (PR #3155) Thanks to @NotAFile!

Bug Fixes:

• synapse fails to start under Twisted >= 18.4 (PR #3157) Thanks to @Half-Shot!
• Fix a class of logcontext leaks (PR #3170)
• Fix a couple of logcontext leaks in unit tests (PR #3172)
• Fix logcontext leak in media repo (PR #3174)
• Escape label values in prometheus metrics (PR #3175, #3186)
• Fix 'Unhandled Error' logs with Twisted 18.4 (PR #3182) Thanks to @Half-Shot!
• Fix logcontext leaks in rate limiter (PR #3183)
• notifications: Convert next_token to string according to the spec (PR #3190) Thanks to @mujx!
• nuke-room-from-db.sh: fix deletion from search table (PR #3194) Thanks to @rubo77!
• add guard for None on purge_history api (PR #3160) Thanks to @krombel!