This patch release includes the following changes:

Improvements:

• Added support for storing retained messages of a single tenant across multiple ranges.
• Implemented message dropping for overflowed messages when a channel becomes unwritable due to a slow subscriber, preventing OOM.

Bug Fixes:

• Fixed an issue where retain requests could be dropped during the batching phase.
• Resolved a bug that caused the route cache to become out of sync when sub/unsub operations were performed concurrently.

Other Changes:

• Upgraded protobuf-java to version 3.25.5 to address its security vulnerability.

Full Changelog: v3.3.1...v3.3.2