Official release notes:
http://pulsar.apache.org/release-notes/#2.6.4
Download area:
http://pulsar.apache.org/en/download/
Broker
- Disallow parsing of token with none signature in authenticateToken #9172
- Fix marking individual deletes as dirty #9732
- Issue 9082: Broker expires messages one at a time after topic unload #9083
- [logging] Upgrade Log4j2 version to 2.14.0, replace legacy log4j dependency with log4j-1.2-api #8880
- Upgrade Bouncy castle to newest version #8047
- Fixed logic for forceful topic deletion #7356
- Perform periodic flush of ManagedCursor mark-delete posistions #8634
- Fix the batch index ack persistent issue. #9504
- Fix the partition number not equals expected error #9446
- fix the closed ledger did not delete after expired #9136
- Fix testBrokerSelectionForAntiAffinityGroup by increasing OverloadedThreshold #9393
Tiered storage
- [tiered-storage] Allow AWS credentials to be refreshed #9387
Java client
- Compression must be applied during deferred schema preparation and enableBatching is enabled #9396
C++ client
- [C++] Remove namespace check for MultiTopicsConsumerImpl #9520