This is the second stable release of Apache Hadoop 2.10 line. It contains 218 bug fixes, improvements and enhancements since 2.10.0.

Users are encouraged to read the overview of major changes since 2.10.0. For details of 218 bug fixes, improvements, and other enhancements since the previous 2.10.0 release, please check release notes and changelog detail the changes since 2.10.0.