v0.3.0

Docker images available at: https://github.com/matrix-org/sliding-sync/pkgs/container/sliding-sync

Features:

• Implements a newer version of MSC3575.
• Add support for txn_id.

Improvements:

• Buffer server responses to ensure no requests which make it to the server are lost.

Bugfixes:

• When space children are added/removed from the space, correctly update lists tracking that space.
• Fixed a bug where joining a room raced with creating a room subscription.