The Summer 2015 release of the LSST stack is internally numbered v11_0 in eups and eups distrib; each git repository has been tagged with "11.0".
These release notes document notable updates since 10.1, which was the Summer 2015 release.
Big Important thing
The following fixes resolve problems visible to end users.
These improvements should not usually be visible to end users. They may be important for developers, however.