- Memory usage monitoring is now showing current RSS, not max RSS
- Consumer cancellation doesn't requeue unacked messages
- UI: No more JSON parsing errors when the server is offline
- UI: Fix name filter pagination bug
- Support delayed exchange via policy and x-delayed-message exchange type
- Clear all user permissions to a vhost when it's deleted
- Allow exchange to exchange binding for internal exchanges
- Redeclare queue updatex expiration time correctly
- Stricter validation of queue argments
- Stricter validation of frame sizes
- Closing connections on missed heartbeat (even if the TCP connection is alive)
- Correctly requeue cancelled consumers messages on close
- Respect the not_in_use flag when deleting exchanges
- UI: Fixing the Unbind button on Exchange in the UI
- Support for Nack with delivery tag 0
- Stricter exchange and queue name validation
- Dead-letters can't loop
- Detect header/body frames that are out of order
- Don't allow binding/unbinding exclusive queues
- Use the shortest TTL of expiration header and queue message-ttl
- Validates the expiration field on publish
- Semantic comparison of headers when declaring queues/exchanges

- Support for consistent hash exchange
- Support for exchange federation
- Support for priority queues
- Ability to "pause" queues, stopping messages to be delivered to consumers
- max-length-bytes supported as queue argument and policy
- UI: Shows bytes of messages a queue hold
- UI: Show data rates and heartbeats in connections listing
- Reload TLS certificates on HUP signal
- systemctl reload avalanchemq now supported in systemd (by sending HUP to main pid)
- UNIX socket support for HTTP server
- Documented how persistent exchange works in the readme
- Promethous exporter at /metrics
- Respect the CC header when dead-lettering
- Support for Decimal values in headers
- UI: Show Unroutable messages rates in Exchange graph
- UI: Churn stats
- Queue bind now substitutes empty queue and routing key values with last declared queue
- UserID header is now validate
- Better server properties sent on connection establishment

- On-disk file formats has changed so previous data directories are incompatible with this version
- Decreased memory usage and increased performance by reimplemented segment GC
- Only listen on localhost by default
- DEB packages are distributed via packagecloud.io
- Log less on shutdown
- Higher throughput due to revamped segment GC algorithm
- Validate x-match headers
- Don't allow declaring or deleting the default exchange
- avalanchemqctl now uses a private unix socket for communication
- Make queue/exchange delete and unbind idempotent