Revision control
++ Qt 5.13 introduces many new features and improvements as well as bugfixes
++ over the 5.12.x series. For more details, refer to the online documentation
++ included in this distribution. The documentation is also available online:
++
++
++ The Qt version 5.13 series is binary compatible with the 5.12.x series.
++ Applications compiled for 5.12 will continue to run with 5.13.
++
++ Some of the changes listed in this file include issue tracking numbers
++ corresponding to tasks in the Qt Bug Tracker:
++
++
++ Each of these identifiers can be entered in the bug tracker to obtain more
++ information about a particular change.
++
++ ****************************************************************************
++ * General *
++ ****************************************************************************
++
++ - libwayland 1.8.0 is now required.
++ - Code generated by qtwaylandscanner now includes wayland-client-core.h
++ and wayland-server-core.h instead of wayland-client.h and
++ wayland-server.h. This might break source compatibility for code using
++ custom wayland extensions.
++
++ ****************************************************************************
++ * Compositor *
++ ****************************************************************************
++
++ - [QTBUG-70662] Added QWaylandQuickItem::mapFromSurface which converts
++ points in Wayland surface coordinates to points in QQuickItem
++ coordinates.
++ - Fixed a bug where xdg-shell popups were misplaced when devicePixelRatio
++ was not 1.
++ - QWaylandSurface::destinationSize has been added which returns the size
++ of the surface that will be displayed on the screen in surface
++ coordinates.
++ - Fixed a bug where QWaylandSurface::inputRegionContains would return true
++ for some points outside surfaces with buffer scale > 1.
++ - Fixed a bug which caused ShellSurfaceItems for surfaces with buffer
++ scale > 1 to move too much when resizing interactively.
++ - QWaylandSurface::size has been deprecated. Use bufferSize or
++ destinationSize instead.
++ - Added support for linux-dmabuf-unstable-v1.
++ - Added support for the viewporter Wayland extension.
++ - Added a missing change signal for WaylandQuickItem.compositor.
++ - Added deprecated support for the deprecated the wl_scaler extension.
++ - Fixed a bug where virtual keyboard did not send Enter event to clients.
++
++ ****************************************************************************
++ * QPA plugin *
++ ****************************************************************************
++
++ - The environment variables, QT_WAYLAND_CLIENT_BUFFER_INTEGRATION and
++ QT_WAYLAND_SERVER_BUFFER_INTEGRATION, now takes precedence over what is
++ communicated through the qt_hardware_integration wayland interface.
++ - The private window decoration API method,
++ QWaylandAbstractDecoration::startResize, now takes Qt::Edges argument
++ instead of a wl_shell_surface_resize enum. This will break window
++ decoration plugins written for older versions of Qt Wayland.
++ - Shell integrations are now features that can be enabled or disabled at
++ build time.
++ - Clients now follow the keyboard key repeat delay and interval configured
++ by the compositor.
++ - Added support for fullscreen-shell unstable v1.
++ - A window menu is now shown when the window decorations are right-clicked
++ (if supported by the compositor).
++ - Minimum and maximum window size is now supported with the xdg-shell and
++ xdg-shell-v6 shell integrations.
++ - xdg-shell (stable and v6) window geometry is now sent every time the
++ window is resized.
++ - Fixed a bug where window decorations were to small for for the content
++ when QT_SCALE_FACTOR was set.
++ - [QTBUG-54786] Fixed a bug where pasting from the clipboard would prefer
++ ASCII over UTF-8, causing loss of special characters.
++ - [QTBUG-68571] Fixed a bug where the DPI of bitmap cursors were not sent
++ to the compositor, leading to the compositor incorrectly scaling the
++ cursor up or down.
++ - [QTBUG-68571] Fixed a bug where bitmap cursor hotspots were off when the
++ screen scale factor was different from the bitmap cursor device pixel
++ ratio.
++ - Fixed a leak of wl_data_offers.
++ - Cursors on high DPI screens are now scaled up if the cursor theme does
++ not have an appropriate high resolution version.
++ - Fixed a bug where QGuiApplication::screens() and primaryScreen() would
++ return initial screens in the reverse order they were added by the
++ compositor. QGuiApplication::primaryScreen() will now return the first
++ output added by the compositor.
++ - Fixed a bug where windows with an OpenGL Core context and window
++ decorations didn't work.
++ - Fixed a build issue where the platform plugin would not be built if the
++ compositor wasn't build.
++ - 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.
++ - Improved startup time by moving key Compose table parsing from startup
++ to the first use (a key was pressed).
++ - Selecting a module via QT_IM_MODULE now works as documented.
++ - Fixed a bug where Ctrl + <some letter> did not work with non-latin
++ keyboard layouts. Other shortcut sequences with non-latin keys not
++ working also have been fixed now.
++ - Fixed a bug where shortcuts with modifiers that change resulting key
++ would not work as expected.
++ - Added support for xdg-output-unstable-v1 version 2. This means
++ QScreen::name(), will now typically return "VGA-1", "WL-1", "DP-2",
++ "HDMI-A-1" and similar instead of "Screen25", "Screen26", "Screen27"
++ etc. (on supported compositors).
++ - Fixed a crash when closing multiple popups at once.