Qt 5.9.1 is a bug-fix release. It maintains both forward and backward compatibility (source and binary) with Qt 5.9.0. For more details, refer to the online documentation included in this distribution. The documentation is also available online: http://doc.qt.io/qt-5/index.html The Qt version 5.9 series is binary compatible with the 5.8.x series. Applications compiled for 5.8 will continue to run with 5.9. Exception: between Qt 5.8.0 and 5.9.0 the QWaylandQuickOutput class was changed in a binary incompatible way. 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. **************************************************************************** * Qt Wayland General * **************************************************************************** - [QTBUG-61183] Fix build issue when libhybris is installed. - Fix build issue when X11 is not installed. **************************************************************************** * Qt Wayland QPA Plugin * **************************************************************************** - [QTBUG-55956] Fix windows with WA_TranslucentBackground on Weston. - Fix double delete in Broadcom plugin. - Fix issues with high-DPI scaling. - Make sure cursor is set correctly when the pointer enters the window. - Fix keyboard modifiers for mouse wheel events. **************************************************************************** * Qt Wayland Compositor API * **************************************************************************** - This release contains only minor code improvements in the compositor API.