This is the first release of Apache Hadoop 3.4 line. It contains 2888 bug fixes, improvements and enhancements since 3.3. Users are encouraged to read the overview of major changes. For details of please check release notes and changelog. This is a release of Apache Hadoop 3.3 line. It contains 117 bug fixes, improvements and enhancements since 3.3.5. Users of Apache Hadoop 3.3.5 and earlier shoul