Qt 5.12.1 is a bug-fix release. It maintains both forward and backward
compatibility (source and binary) with Qt 5.12.0.

For more details, refer to the documentation included in this
distribution. The documentation is also available online:

https://doc.qt.io/qt-5/

The Qt version 5.12 series is binary compatible with the 5.11.x series.
Applications compiled for 5.11 will continue to run with 5.12.

 - This release contains only minor code improvements.