umm.. 2.0 is much more than cleanup.  The pipeline aggregations are huge (it&#x27;s already really great for analytics - pipeline aggregation bring it to an entirely new level.)  Also the doc_value by default will help many people store much bigger data with less memory without thinking about it (you can do it now yourself but you have to know that you should). It&#x27;s also has better stored compression options that come with the move the Lucene 5.  This is a major release.