Qt 5.12.4 is a bug-fix release. It maintains both forward and backward
compatibility (source and binary) with Qt 5.12.0 through 5.12.3.

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

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

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.

Some of the changes listed in this file include issue tracking numbers
corresponding to tasks in the Qt Bug Tracker:

https://bugreports.qt.io/

Each of these identifiers can be entered in the bug tracker to obtain more
information about a particular change.

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*                                Compositor                                *
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 - Fixed a crash that could happen when accessing the d_func of
   QWaylandShell.

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*                                QPA plugin                                *
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 - The non-blocking version of eglSwapBuffers is now used, if supported.
   This fixed a bug where minimized windows would block the event loop.
 - Windows that don't get frame callbacks from the compositor within 100 ms
   are now set as not exposed. This should stop most clients from rendering
   unnecessary frames to minimized or hidden windows.
 - Fixed a crash on xdg-shell v5 when creating a popup without a valid
   parent.
 - Fixed a protocol error when an application tried to render to a window
   before a shell or sub-surface was created.
 - Fixed a crash when closing multiple popups at once.