[Announce] Qt 5.8.0 and Qt Creator 4.2.1 released

[List for announcements regarding Qt releases and development]

Hi all,

Qt 5.8.0 and Qt Creator 4.2.1 releases are out! For details please see the blog post (http://blog.qt.io/blog/2017/01/23/qt-5-8-released/, http://blog.qt.io/blog/2017/01/23/qt-creator-4-2-1-released/) & visit in https://www.qt.io/qt5-8/

Big thanks to everyone involved!

Br,
Jani