Michael Shuler

DataStax is proud to announce the immediate availability of DataStax Community Edition (DSC) 2.2.0!

DSC 2.2.0 has been uploaded to the public repositories and is available for&nbsp;<a href="http://www.planetcassandra.org/cassandra/">download from PlanetCassandra</a>.

This is the first release of the Apache Cassandra 2.2 branch and&nbsp;<a href="https://www.datastax.com/dev/blog/cassandra-2-2">Jonathan covered several highlights in an earlier post</a>, this morning. For a full list of new 2.2 features and upgrade notes, users are encouraged to&nbsp;<a href="https://github.com/apache/cassandra/blob/cassandra-2.2.0/NEWS.txt#L16-L150">fully read through the 2.2.0 section NEWS.txt file</a>&nbsp;included in the source code. If you are upgrading from a previous release, read NEWS.txt all the way back to your current version!

A few notable changes that may be gotchas for upgrading and experienced users (not a complete list - see NEWS.txt!):

<ul>
	<li>Thrift RPC is no longer started by default</li>
	<li>cassandra-cli has been removed</li>
	<li>CQL2 has been removed (deprecated in 2.0.0)</li>
	<li>Very large batches will be rejected</li>
	<li>ALLOW FILTERING required for some secondary index queries&nbsp;with restrictions on non-indexed clustering columns</li>
</ul>

If you would like to dig through all the changes in 2.2.0 since 2.1, you can find those listed in&nbsp;<a href="https://github.com/apache/cassandra/blob/cassandra-2.2.0/CHANGES.txt#L1-L286">CHANGES.txt in the source</a>.

Enjoy!

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