title: Apache Accumulo 2.0.0-alpha-2
Apache Accumulo 2.0.0-alpha-2 contains numerous changes since the alpha-2. This alpha release is a preview of features coming in 2.0.0. It is being made available for preview, testing, and evaluation of those upcoming features, but is not yet suitable for production use. API, packaging, and other changes may still occur before a final 2.0.0 release.
- [User Manual][user_manual] - In-depth developer and administrator documentation
- [Javadocs][javadoc] - Accumulo 2.0 API (subject to change)
Notable Changes
- Please see the [draft release notes for 2.0.0][draft_notes] for a list of the changes coming in 2.0.0, many of which are either complete, or nearly complete in this alpha release.
Since 2.0.0-alpha-1
- New Map Reduce API {% ghi 743 %} {% ghi 751 %} {% ghi 753 %} {% ghi 803 %}
- Deprecated existing map reduce API [2465562] {% ghi 804 %} {% ghi 892 %}
- Added ability to create scanners with default auths {% ghi 744 %}
- Updated AccumuloClient builder API {% ghi 792 %}
- AccumuloClient was made Closeable {% ghi 718 %}
- Scanners close server side sessions on close {% ghi 813 %} {% ghi 905 %}
[javadoc]: {{ site.baseurl }}/docs/2.x/apidocs/ [user_manual]: {{ site.baseurl }}/docs/2.x/ [draft_notes]: {{ site.baseurl }}/release/accumulo-2.0.0 [2465562]: https://github.com/apache/accumulo/commit/2465562cd088b126bfb17523c33c8acd0a48309f