These release notes cover new developer and user-facing incompatibilities, important issues, features, and major improvements.
Adds a kafka proxy that appears to hbase as a replication peer. Use to tee table edits to kafka. Has mechanism for dropping/routing updates. See https://github.com/apache/hbase-connectors/tree/master/kafka for documentation.
Cleaned up kafka submodule dependencies. Added used dependencies to pom and removed the unused. Depends explicitly on hadoop2. No messing w/ hadoop3 versions.
Updates our hbase-spark integration so defaults spark 2.4.0 (October 2018) from 2.1.1 and Scala 2.11.12 (from 2.11.8).