Qt 5.1 Release Candidate is out!

[JKSH]

https://blog.qt.digia.com/blog/2013/06/18/qt-5-1-release-candidate-available/

Unfortunately, it looks like a fix required for CMake on Windows "did not make it in time":http://lists.qt-project.org/pipermail/development/2013-June/011360.html. It will be in the final release, however.