</h2>
<ul>
<li>[<a href='http://www.doctrine-project.org/jira/browse/DDC-3677'>DDC-3677</a>] - [GH-1375] DDC-3671 prevent duplicate unique index
</li>
<li>[<a href='http://www.doctrine-project.org/jira/browse/DDC-3899'>DDC-3899</a>] - [GH-1507] Fixed wrong property name
</li>
<li>[<a href='http://www.doctrine-project.org/jira/browse/DDC-3908'>DDC-3908</a>] - [GH-1510] Fix cache storage related test issues (due to doctrine/cache 1.5.0 changes)
</li>
<li>[<a href='http://www.doctrine-project.org/jira/browse/DDC-3911'>DDC-3911</a>] - [GH-1512] Backport of "LimitSubqueryOutputWalker: fix aliasing of property in OrderBy from MappedSuperclass"
</li>
<li>[<a href='http://www.doctrine-project.org/jira/browse/DDC-3973'>DDC-3973</a>] - [GH-1540] [DDC-3711] Correct Error on manyToMany with composite primary key + add Tests
</li>
</ul>
<h2> Documentation
</h2>
<ul>
<li>[<a href='http://www.doctrine-project.org/jira/browse/DDC-3938'>DDC-3938</a>] - [GH-1529] Update Upgrade.md after minor bc break in 2.5.1
</li>
</ul>