The HBase 0.2.0 release includes 291 changes . New features include a
richer API, a new ruby irb-based shell, an improved UI, and many
improvements to overall stability. To download, visit .
HBase 0.2.0 is not backward compatible with HBase 0.1 API (See  for
an overview of the changes). To migrate your 0.1 era HBase data to 0.2,
see the Migration Guide . HBase 0.2.0 runs on Hadoop 0.17.x. To run
0.2.0 on hadoop 0.18.x, replace the hadoop 0.17.1 jars under
$HBASE_HOME/lib with their 0.18.x equivalents and then recompile.
Thanks to all who contributed to this release.
The HBase Team