Features
MQTT5 protocol version support. Almost all features are supported except:
- enhanced authentication
- maximum packet size limitation
- server reference
- server assigned client ID
Refer to #695 for the details.
Breaking changes
Support for BugSnag and Librato metrics were dropped, so the settings: use_metrics, metrics.librato.*, use_bugsnag, bugsnag.token are NOT anymore recognized. Please clean your moquette.conf if you used. In a future version will be developed some form of observability.
Deprecations
Default persistence for session queues (selected by persistent_queue_type) switched from H2 to segmented, leveraging memory mapped pages instead of the BTree offered by H2. Persisting queue in H2 is planned for complete removal.