Features
- NATS JetStream is now used instead of Kafka and Naffka
- For monolith deployments, a built-in NATS Server is embedded into Dendrite or a standalone NATS Server deployment can be optionally used instead
- For polylith deployments, a standalone NATS Server deployment is required
- Requires the version 2 configuration file — please see the new
dendrite-config.yamlsample config file - Kafka and Naffka are no longer supported as of this release
- The roomserver is now responsible for fetching missing events and state instead of the federation API
- Removes a number of race conditions between the federation API and roomserver, which reduces duplicate work and overall lowers CPU usage
- The roomserver input API is now strictly ordered with support for asynchronous requests, smoothing out incoming federation significantly
- Consolidated the federation API, federation sender and signing key server into a single component
- If multiple databases are used, tables for the federation sender and signing key server should be merged into the federation API database (table names have not changed)
- Device list synchronisation is now database-backed rather than using the now-removed Kafka logs
Fixes
- The code for fetching missing events and state now correctly identifies when gaps in history have been closed, so federation traffic will consume less CPU and memory than before
- The stream position is now correctly advanced when typing notifications time out in the sync API
- Event NIDs are now correctly returned when persisting events in the roomserver in SQLite mode
- The built-in SQLite was updated to version 3.37.0 as a result
- The
/event_authendpoint now strictly returns the auth chain for the requested event without loading the room state, which should reduce spikes in memory usage - Filters are now correctly sent when using federated public room directories (contributed by S7evinK)
- Login usernames are now squashed to lower-case (contributed by BernardZhao)
- The logs should no longer be flooded with
Failed to get server ACLs for roomwarnings at startup - Backfilling will now attempt federation as a last resort when trying to retrieve missing events from the database fails