Erik JohnstonandClaude Opus 5.5 d63740fc30 Add the rust_sliding_sync option and a Rust SlidingSyncHandler ...

Phase 0 of the sliding sync port (renders/sliding-sync-rust-plan.md). No
behaviour change: nothing calls the Rust handler yet.

- `experimental_features.rust_sliding_sync: off | on`. There is no shadow
  mode. Booleans are accepted, as for `rust_sync`.
- `synapse_rust.sliding_sync.SlidingSyncHandler`, built by `RustHandlers`
  on the native driver only. It shares the v2 sync handler's `SyncStore`
  and carries the pool, deferred and blocking helpers the later phases'
  entry points use.
- `SlidingSyncStats`, observed per request into the
  `synapse_sliding_sync_rust_*` histograms. `SyncDbStats` now counts the
  transactions a reader begins.
- The `synapse_sliding_sync_rust_rooms_total` and
  `synapse_sliding_sync_rust_requests_total` counters.
- `SYNAPSE_TEST_RUST_SLIDING_SYNC` and `_STRICT` for trial, with the handler
  wrapped in `_BlockingRustCalls`, and `RUST_SLIDING_SYNC` for Complement.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01R5b7Ruy4cgt27Mjq6Ptxbb

2026-10-16 10:19:27 +00:00

..

api

Profile endpoint rate limit (#20218)

2026-09-18 12:00:45 +01:00

app

Add a per-homeserver clock to the Rust side (#20294)

2026-10-07 11:11:08 +01:00

appservice

Add experimental support for letting application services proxy namespaces in the C-S and S-S API as per MSC4512 (#19972)

2026-08-28 13:45:54 +01:00

config

Add the rust_sliding_sync option and a Rust SlidingSyncHandler

2026-10-16 10:19:27 +00:00

crypto

Update HomeserverTestCase.get_success(...) and friends to drive async Rust (Tokio runtime/thread pool) (#19871)

2026-07-02 15:20:38 -05:00

events

Add received_ts to the in-memory event internal metadata struct. (#20312)

2026-10-06 19:27:46 +01:00

federation

Fix review findings in Rust catch-up and the sticky backlog

2026-10-16 09:27:35 +00:00

handlers

Add the rust_sliding_sync option and a Rust SlidingSyncHandler

2026-10-16 10:19:27 +00:00

http

Fix review findings in the Rust transaction sender

2026-10-15 14:54:44 +00:00

logging

Bump Twisted in poetry.lock from 25.5.0 to 26.4.0 (#20259)

2026-09-29 17:50:55 +00:00

media

Use beautifulsoup4 instead of lxml for URL previews (#19301)

2026-10-02 15:46:34 +01:00

metrics

Report the database driver in phone-home stats

2026-10-12 18:36:38 +00:00

module_api

MSC4140: add dedicated endpoint for delayed events (#19354)

2026-10-08 05:02:12 +00:00

push

Short-circuit push rule evaluation when only one user is in a room (#20315)

2026-10-12 11:56:27 +01:00

replication

Load events in Rust for Python too, on the native driver

2026-10-16 09:34:35 +00:00

rest

Bundle a sync timeline's aggregations in Rust

2026-10-15 12:45:03 +00:00

scripts

Write union types as X | Y where possible (#19111)

2025-11-06 14:02:33 -06:00

server_notices

Force keyword-args for clear default_config(server_name="test") usage (#19849)

2026-06-12 09:45:22 -05:00

state

Make the Rust event cache EventsWorkerStore's event cache

2026-10-15 12:14:54 +00:00

storage

Load events in Rust for Python too, on the native driver

2026-10-16 09:34:35 +00:00

synapse_rust

Sign federation requests in Rust

2026-10-15 14:54:15 +00:00

sync

Port the room summary heroes to Rust

2026-10-14 13:35:25 +00:00

test_utils

Don't store file on disk after media upload limit failure (#20006)

2026-10-07 12:05:01 +00:00

types

Replace usage of deprecated assertEquals with assertEqual (#19345)

2026-01-06 17:30:21 +00:00

util

Fix review findings in Rust catch-up and the sticky backlog

2026-10-16 09:27:35 +00:00

__init__.py

Correctly mention previous copyright (#16820)

2024-01-23 11:26:48 +00:00

server.py

Add the rust_sliding_sync option and a Rust SlidingSyncHandler

2026-10-16 10:19:27 +00:00

test_distributor.py

Cleanly shutdown SynapseHomeServer object (#18828)

2025-10-01 02:42:09 +00:00

test_event_auth.py

Use the Rust auth rules from Python

2026-10-13 10:49:24 +00:00

test_mau.py

Force keyword-args for clear default_config(server_name="test") usage (#19849)

2026-06-12 09:45:22 -05:00

test_notifier.py

Add metrics for wait_for_stream_token timeouts per lagging stream (#20095)

2026-09-25 12:09:38 +01:00

test_phone_home.py

Move unique snowflake homeserver background tasks to start_background_tasks (#19037)

2025-10-13 10:19:09 -05:00

test_rust_server_visibility.py

Fix review findings in Rust catch-up and the sticky backlog

2026-10-16 09:27:35 +00:00

test_rust.py

Add missing type hints to tests. (#15027)

2023-02-08 19:52:37 +00:00

test_server.py

Rename the test_disconnect test helper so that pytest doesn't see it as a test. (#19486)

2026-02-20 15:37:34 +00:00

test_state.py

Add a cache to state res to cache more cases (#20185)

2026-09-21 13:40:31 +01:00

test_terms_auth.py

Introduce Clock.call_when_running(...) to include logcontext by default (#18944)

2025-09-22 10:27:59 -05:00

test_types.py

Expose MSC4354 Sticky Events over MSC4186 (Simplified) Sliding Sync. (#19591)

2026-06-23 13:04:36 +00:00

test_visibility.py

MSC4311: Use full PDU's in stripped state (like invite_room_state) over federation and always include m.room.create event (#19723)

2026-09-22 11:57:54 -05:00

unittest.py

Fix appservice ephemeral read receipts being permanently skipped on large receipt bursts (#20108)

2026-09-29 12:06:15 +01:00

utils.py

Add the rust_sliding_sync option and a Rust SlidingSyncHandler

2026-10-16 10:19:27 +00:00