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@kegsay kegsay released this 16 Dec 12:23
· 1307 commits to main since this release
v0.98.0
714e127

Docker images available at: https://github.com/matrix-org/sliding-sync/pkgs/container/sliding-sync Major release preparing for an official v1.

Features:

  • Add typing extension.
  • Add receipts extension.
  • Add comprehensive prometheus /metrics activated via SYNCV3_PROM.
  • Add SYNCV3_PPROF support.
  • Add by_notification_level sort order.
  • Add include_old_rooms support.
  • Add support for $ME and $LAZY.
  • Add correct filtering when *,* is used as required_state.
  • Add num_live to each room response to indicate how many timeline entries are live.

Bug fixes:

  • Use a stricter comparison function on ranges: fixes an issue whereby UTs fail on go1.19 due to change in sorting algorithm.
  • Send back an errcode on HTTP errors (e.g expired sessions).
  • Remove unsigned.txn_id on insertion into the DB. Otherwise other users would see other users txn IDs :(
  • Improve range delta algorithm: previously it didn't handle cases like [0,20] -> [20,30] and would panic.
  • Send HTTP 400 for invalid range requests.
  • Don't publish no-op unread counts which just adds extra noise.
  • Fix leaking DB connections which could eventually consume all available connections.
  • Ensure we always unblock WaitUntilInitialSync even on invalid access tokens. Other code relies on WaitUntilInitialSync() actually returning at some point e.g on startup we have N workers which bound the number of concurrent pollers made at any one time, we need to not just hog a worker forever.

Improvements:

  • Greatly improve startup times of sync3 handlers by improving JoinedRoomsTracker: a modest amount of data would take ~28s to create the handler, now it takes 4s.
  • Massively improve initial initial v3 sync times, by refactoring JoinedRoomsTracker, from ~47s to <1s.
  • Add SlidingSyncUntil... in tests to reduce races.
  • Tweak the API shape of JoinedUsersForRoom to reduce state block processing time for large rooms from 63s to 39s.
  • Add trace task for initial syncs.
  • Include the proxy version in UA strings.
  • HTTP errors now wait 1s before returning to stop clients tight-looping on error.
  • Pending event buffer is now 2000.
  • Index the room ID first to cull the most events when returning timeline entries. Speeds up SelectLatestEventsBetween by a factor of 8.
  • Remove cancelled m.room_key_requests from the to-device inbox. Cuts down the amount of events in the inbox by ~94% for very large (20k+) inboxes, ~50% for moderate sized (200 events) inboxes. Adds book-keeping to remember the unacked to-device position for each client.
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