A wide variety of companies and organizations use Hadoop for both research and production. Users are encouraged to add themselves to the Hadoop PoweredBy wiki page. 8 Aug 2018: Release 3.1.1 available This is the first stable release of Apache Hadoop 3.1 line. It contains 435 bug fixes, improvements and enhancements since 3.1.0 Users are encouraged to read the overview of major changes since 3.1.0