This is the second stable release of Apache Hadoop 3.1 line. It contains 308 bug fixes, improvements and enhancements since 3.1.3.
Users are encouraged to read the overview of major changes since 3.1.3. For details of 308 bug fixes, improvements, and other enhancements since the previous 3.1.3 release, please check release notes and changelog.
2020 Aug 3