Commit: https://invent.kde.org/qt/qt/qt5/-/commit/2ab84b12b09a6c642d7c16de392d85bbcd49bb6a 
Commercial release announcement: https://www.qt.io/blog/commercial-lts-qt-5.15.5-released
I want to personally extend my gratitude to the Commercial users of Qt for beta testing Qt 5.15.5 for the rest of us.
The
 Commercial Qt 5.15.5 release introduced some bugs that have later been 
fixed. Thanks to that, our Patchset Collection has been able to 
incorporate the reverts for those  bugs [1] [2] [3] [4] and the Free Software users will never be affected by those! 
