The main reason for this release was that KF5 had a backward incompatible change. The minimum required version of Qt is bumped to 5.15.0 and that of KF5 to 5.82.0. As a result, old distros can't be supported anymore.
Other changes:
● A workaround is added for the wrong style code of KisDoubleSliderSpinBox in Krita ≥ 5.0.0.
● Options are added (to Kvantum Manager) for setting corner radii when blurring translucent menus and tooltips with rounded corners. Usually, a value of 2 is enough for preventing blur artifacts.
● 16px is given to the width of vertical spinbox buttons.
● Small fixes.