Change log:
f759800 Upgrade versions; prepare for release
ab3945d Fix New Sonar Issues
a3ee610 GH-2000: Doc RetryTopic Publish with Deser. Errors
505bd84 GH-2001: Propagate Exception from TX Sync Commit
82cb03e GH-1902: AuthenticationException Fatal By Default
15e771a GH-2003: Fix RetryableTopic Delivery Attempts Hdr
df4a5b1 GH-1994: Fix Typos in Doc
bcdd523 GH-1991: Exclude slf4j impl and log4j via Zookeeper
0ebad52 Upgrade jfrog-cli for Central Action
387d435 GH-1994: Option to Strip Exception Headers
42fef6e GH-1982: Boot 2.6 Compatibility (Retryable Topics)
d2bf746 Fix JavaDoc
1b84562 Add nullable annotation on ContainerProperties.transactionManager getter/setter
4eb4d9d GH-1983: Fix New Sonar Issues
0535760 Fix Checkstyle violation
00bf6ae GH-1983: No ProducerFactory copy in KafkaTemplate
d4b88b0 GH-1983: Support copy of producer factory
4e2a237 GH-1981: Optionally Don't Start the DLT Container
9675fea Fix Deprecation Warnings