This is a release of Apache Hadoop 3.3 line.
Key changes include
Users of Apache Hadoop 3.3.4 and earlier should upgrade to this release.
All users are encouraged to read the overview of major changes since release 3.3.4.
For details of bug fixes, improvements, and other enhancements since the previous 3.3.4 release, please check release notes and changelog.
The ABFS connector has a critical bug fix https://issues.apache.org/jira/browse/HADOOP-18546: ABFS. Disable purging list of in-progress reads in abfs stream close().
All users of the abfs connector in hadoop releases 3.3.2+ MUST either upgrade
to this release or disable prefetching by setting