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Synapse 0.33.0 (2018-07-19)
===========================
Features
--------
- Enforce the specified API for report\_event ([\#3316](https://github.com/matrix-org/synapse/issues/3316))
- Include CPU time from database threads in request/block metrics. ([\#3496](https://github.com/matrix-org/synapse/issues/3496), [\#3501](https://github.com/matrix-org/synapse/issues/3501))
- Add CPU metrics for \_fetch\_event\_list ([\#3497](https://github.com/matrix-org/synapse/issues/3497))
- optimisation for /sync ([\#3505](https://github.com/matrix-org/synapse/issues/3505), [\#3521](https://github.com/matrix-org/synapse/issues/3521))
- Optimisation to make handling incoming federation requests more efficient. ([\#3541](https://github.com/matrix-org/synapse/issues/3541))
Bugfixes
--------
- Use more portable syntax in our use of the attrs package, widening the supported versions ([\#3498](https://github.com/matrix-org/synapse/issues/3498))
- Fix queued federation requests being processed in the wrong order ([\#3533](https://github.com/matrix-org/synapse/issues/3533))
- Ensure that erasure requests are correctly honoured for publicly accessible rooms when accessed over federation. ([\#3546](https://github.com/matrix-org/synapse/issues/3546))
- Disable a noisy warning about logcontexts ([\#3561](https://github.com/matrix-org/synapse/issues/3561))
Misc
----
- [\#3351](https://github.com/matrix-org/synapse/issues/3351), [\#3463](https://github.com/matrix-org/synapse/issues/3463), [\#3464](https://github.com/matrix-org/synapse/issues/3464), [\#3499](https://github.com/matrix-org/synapse/issues/3499), [\#3530](https://github.com/matrix-org/synapse/issues/3530), [\#3534](https://github.com/matrix-org/synapse/issues/3534), [\#3535](https://github.com/matrix-org/synapse/issues/3535), [\#3540](https://github.com/matrix-org/synapse/issues/3540), [\#3544](https://github.com/matrix-org/synapse/issues/3544)
Synapse 0.32.2 (2018-07-07)
===========================
Bugfixes
--------
- Amend the Python dependencies to depend on attrs from PyPI, not attr ([\#3492](https://github.com/matrix-org/synapse/issues/3492))
Synapse 0.32.1 (2018-07-06)
===========================
Bugfixes
--------
- Add explicit dependency on netaddr ([\#3488](https://github.com/matrix-org/synapse/issues/3488))
Changes in synapse v0.32.0 (2018-07-06)
=======================================
No changes since 0.32.0rc1
Synapse 0.32.0rc1 (2018-07-05)
==============================
Features
--------
- Add blacklist & whitelist of servers allowed to send events to a room via `m.room.server_acl` event.
- Cache factor override system for specific caches ([\#3334](https://github.com/matrix-org/synapse/issues/3334))
- Add metrics to track appservice transactions ([\#3344](https://github.com/matrix-org/synapse/issues/3344))
- Try to log more helpful info when a sig verification fails ([\#3372](https://github.com/matrix-org/synapse/issues/3372))
- Synapse now uses the best performing JSON encoder/decoder according to your runtime (simplejson on CPython, stdlib json on PyPy). ([\#3462](https://github.com/matrix-org/synapse/issues/3462))
- Add optional ip\_range\_whitelist param to AS registration files to lock AS IP access ([\#3465](https://github.com/matrix-org/synapse/issues/3465))
- Reject invalid server names in federation requests ([\#3480](https://github.com/matrix-org/synapse/issues/3480))
- Reject invalid server names in homeserver.yaml ([\#3483](https://github.com/matrix-org/synapse/issues/3483))
Bugfixes
--------
- Strip access\_token from outgoing requests ([\#3327](https://github.com/matrix-org/synapse/issues/3327))
- Redact AS tokens in logs ([\#3349](https://github.com/matrix-org/synapse/issues/3349))
- Fix federation backfill from SQLite servers ([\#3355](https://github.com/matrix-org/synapse/issues/3355))
- Fix event-purge-by-ts admin API ([\#3363](https://github.com/matrix-org/synapse/issues/3363))
- Fix event filtering in get\_missing\_events handler ([\#3371](https://github.com/matrix-org/synapse/issues/3371))
- Synapse is now stricter regarding accepting events which it cannot retrieve the prev\_events for. ([\#3456](https://github.com/matrix-org/synapse/issues/3456))
- Fix bug where synapse would explode when receiving unicode in HTTP User-Agent header ([\#3470](https://github.com/matrix-org/synapse/issues/3470))
- Invalidate cache on correct thread to avoid race ([\#3473](https://github.com/matrix-org/synapse/issues/3473))
Improved Documentation
----------------------
- `doc/postgres.rst`: fix display of the last command block. Thanks to @ArchangeGabriel! ([\#3340](https://github.com/matrix-org/synapse/issues/3340))
Deprecations and Removals
-------------------------
- Remove was\_forgotten\_at ([\#3324](https://github.com/matrix-org/synapse/issues/3324))
Misc
----
- [\#3332](https://github.com/matrix-org/synapse/issues/3332), [\#3341](https://github.com/matrix-org/synapse/issues/3341), [\#3347](https://github.com/matrix-org/synapse/issues/3347), [\#3348](https://github.com/matrix-org/synapse/issues/3348), [\#3356](https://github.com/matrix-org/synapse/issues/3356), [\#3385](https://github.com/matrix-org/synapse/issues/3385), [\#3446](https://github.com/matrix-org/synapse/issues/3446), [\#3447](https://github.com/matrix-org/synapse/issues/3447), [\#3467](https://github.com/matrix-org/synapse/issues/3467), [\#3474](https://github.com/matrix-org/synapse/issues/3474)
Changes in synapse v0.31.2 (2018-06-14)
=======================================
SECURITY UPDATE: Prevent unauthorised users from setting state events in a room when there is no `m.room.power_levels` event in force in the room. (PR #3397)
Discussion around the Matrix Spec change proposal for this change can be followed at <https://github.com/matrix-org/matrix-doc/issues/1304>.
Changes in synapse v0.31.1 (2018-06-08)
=======================================
v0.31.1 fixes a security bug in the `get_missing_events` federation API where event visibility rules were not applied correctly.
We are not aware of it being actively exploited but please upgrade asap.
Bug Fixes:
- Fix event filtering in get\_missing\_events handler (PR #3371)
Changes in synapse v0.31.0 (2018-06-06)
=======================================
Most notable change from v0.30.0 is to switch to the python prometheus library to improve system stats reporting. WARNING: this changes a number of prometheus metrics in a backwards-incompatible manner. For more details, see [docs/metrics-howto.rst](docs/metrics-howto.rst#removal-of-deprecated-metrics--time-based-counters-becoming-histograms-in-0310).
Bug Fixes:
- Fix metric documentation tables (PR #3341)
- Fix LaterGauge error handling (694968f)
- Fix replication metrics (b7e7fd2)
Changes in synapse v0.31.0-rc1 (2018-06-04)
===========================================
- Switch to the Python Prometheus library (PR #3256, #3274)
- Let users leave the server notice room after joining (PR #3287)
- daily user type phone home stats (PR #3264)
- Use iter\* methods for \_filter\_events\_for\_server (PR #3267)
- Docs on consent bits (PR #3268)
- Remove users from user directory on deactivate (PR #3277)
- Avoid sending consent notice to guest users (PR #3288)
- disable CPUMetrics if no /proc/self/stat (PR #3299)
- Consistently use six\'s iteritems and wrap lazy keys/values in list() if they\'re not meant to be lazy (PR #3307)
- Add private IPv6 addresses to example config for url preview blacklist (PR #3317) Thanks to @thegcat!
- Reduce stuck read-receipts: ignore depth when updating (PR #3318)
- Put python\'s logs into Trial when running unit tests (PR #3319)
- Replace some more comparisons with six (PR #3243) Thanks to @NotAFile!
- replace some iteritems with six (PR #3244) Thanks to @NotAFile!
- Add batch\_iter to utils (PR #3245) Thanks to @NotAFile!
- use repr, not str (PR #3246) Thanks to @NotAFile!
- Misc Python3 fixes (PR #3247) Thanks to @NotAFile!
- Py3 storage/\_base.py (PR #3278) Thanks to @NotAFile!
- more six iteritems (PR #3279) Thanks to @NotAFile!
- More Misc. py3 fixes (PR #3280) Thanks to @NotAFile!
- remaining isintance fixes (PR #3281) Thanks to @NotAFile!
- py3-ize state.py (PR #3283) Thanks to @NotAFile!
- extend tox testing for py3 to avoid regressions (PR #3302) Thanks to @krombel!
- use memoryview in py3 (PR #3303) Thanks to @NotAFile!
- Fix federation backfill bugs (PR #3261)
- federation: fix LaterGauge usage (PR #3328) Thanks to @intelfx!
Changes in synapse v0.30.0 (2018-05-24)
=======================================
\'Server Notices\' are a new feature introduced in Synapse 0.30. They provide a channel whereby server administrators can send messages to users on the server.
They are used as part of communication of the server policies (see `docs/consent_tracking.md`), however the intention is that they may also find a use for features such as \"Message of the day\".
This feature is specific to Synapse, but uses standard Matrix communication mechanisms, so should work with any Matrix client. For more details see `docs/server_notices.md`
Further Server Notices/Consent Tracking Support:
- Allow overriding the server\_notices user\'s avatar (PR #3273)
- Use the localpart in the consent uri (PR #3272)
- Support for putting %(consent\_uri)s in messages (PR #3271)
- Block attempts to send server notices to remote users (PR #3270)
- Docs on consent bits (PR #3268)
Changes in synapse v0.30.0-rc1 (2018-05-23)
===========================================
- ConsentResource to gather policy consent from users (PR #3213)
- Move RoomCreationHandler out of synapse.handlers.Handlers (PR #3225)
- Infrastructure for a server notices room (PR #3232)
- Send users a server notice about consent (PR #3236)
- Reject attempts to send event before privacy consent is given (PR #3257)
- Add a \'has\_consented\' template var to consent forms (PR #3262)
- Fix dependency on jinja2 (PR #3263)
- Cohort analytics (PR #3163, #3241, #3251)
- Add lxml to docker image for web previews (PR #3239) Thanks to @ptman!
- Add in flight request metrics (PR #3252)
- Remove unused update\_external\_syncs (PR #3233)
- Use stream rather depth ordering for push actions (PR #3212)
- Make purge\_history operate on tokens (PR #3221)
- Don\'t support limitless pagination (PR #3265)
- Fix logcontext resource usage tracking (PR #3258)
- Fix error in handling receipts (PR #3235)
- Stop the transaction cache caching failures (PR #3255)
Changes in synapse v0.29.1 (2018-05-17)
=======================================
Changes:
Changes in synapse v0.29.0 (2018-05-16)
=======================================
Not changes since v0.29.0-rc1
Changes in synapse v0.29.0-rc1 (2018-05-14)
===========================================
Notable changes, a docker file for running Synapse (Thanks to @kaiyou!) and a closed spec bug in the Client Server API. Additionally further prep for Python 3 migration.
- 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.
- Add a Dockerfile for synapse (PR #2846) Thanks to @kaiyou!
- 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)
- 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)
- 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!
- synapse fails to start under Twisted \>= 18.4 (PR #3157)
- 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!
Changes in synapse v0.28.1 (2018-05-01)
=======================================
SECURITY UPDATE
- Clamp the allowed values of event depth received over federation to be \[0, 2\^63 - 1\]. This mitigates an attack where malicious events injected with depth = 2\^63 - 1 render rooms unusable. Depth is used to determine the cosmetic ordering of events within a room, and so the ordering of events in such a room will default to using stream\_ordering rather than depth (topological\_ordering).
This is a temporary solution to mitigate abuse in the wild, whilst a long term solution is being implemented to improve how the depth parameter is used.
Full details at <https://docs.google.com/document/d/1I3fi2S-XnpO45qrpCsowZv8P8dHcNZ4fsBsbOW7KABI>
- Pin Twisted to \<18.4 until we stop using the private \_OpenSSLECCurve API.
Changes in synapse v0.28.0 (2018-04-26)
=======================================
Bug Fixes:
- Fix quarantine media admin API and search reindex (PR #3130)
- Fix media admin APIs (PR #3134)
Changes in synapse v0.28.0-rc1 (2018-04-24)
===========================================
Minor performance improvement to federation sending and bug fixes.
(Note: This release does not include the delta state resolution implementation discussed in matrix live)
Features:
- Add metrics for event processing lag (PR #3090)
- Add metrics for ResponseCache (PR #3092)
- Synapse on PyPy (PR #2760) Thanks to @Valodim!
- move handling of auto\_join\_rooms to RegisterHandler (PR #2996) Thanks to @krombel!
- Improve handling of SRV records for federation connections (PR #3016) Thanks to @silkeh!
- Document the behaviour of ResponseCache (PR #3059)
- Preparation for py3 (PR #3061, #3073, #3074, #3075, #3103, #3104, #3106, #3107, #3109, #3110) Thanks to @NotAFile!
- update prometheus dashboard to use new metric names (PR #3069) Thanks to @krombel!
- use python3-compatible prints (PR #3074) Thanks to @NotAFile!
- Send federation events concurrently (PR #3078)
- Limit concurrent event sends for a room (PR #3079)
- Improve R30 stat definition (PR #3086)
- Send events to ASes concurrently (PR #3088)
- Refactor ResponseCache usage (PR #3093)
- Clarify that SRV may not point to a CNAME (PR #3100) Thanks to @silkeh!
- Use str(e) instead of e.message (PR #3103) Thanks to @NotAFile!
- Use six.itervalues in some places (PR #3106) Thanks to @NotAFile!
- Refactor store.have\_events (PR #3117)
- Return 401 for invalid access\_token on logout (PR #2938) Thanks to @dklug!
- Return a 404 rather than a 500 on rejoining empty rooms (PR #3080)
- fix federation\_domain\_whitelist (PR #3099)
- Avoid creating events with huge numbers of prev\_events (PR #3113)
- Reject events which have lots of prev\_events (PR #3118)
Changes in synapse v0.27.4 (2018-04-13)
=======================================
Changes:
- Update canonicaljson dependency (\#3095)
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 overal 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)
- 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)
Changes in synapse v0.27.2 (2018-03-26)
=======================================
Bug fixes:
- Fix bug which broke TCP replication between workers (PR #3015)
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