Qt 5.15 introduces many new features and improvements as well as bugfixes
over the 5.14.x series. 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 5.15 series is binary compatible with the 5.14.x series.
Applications compiled for 5.14 will continue to run with 5.15.

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 5.15 introduces many new features and improvements as well as bugfixes
over the 5.14.x series. For more details, refer to the online documentation
included in this distribution. The documentation is also available online:

  https://doc.qt.io/qt-5.15/index.html

The Qt version 5.15 series is binary compatible with the 5.14.x series.
Applications compiled for 5.14 will continue to run with 5.15.

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.

****************************************************************************
*                        Important Behavior Changes                        *
****************************************************************************

 - [QTBUG-72085] Old delegate items (background, contentItem, etc.) are no
   longer destroyed, as they are technically owned by user code. Instead,
   they are hidden, unparented from the control (QQuickItem parent, not
   QObject), and Accessible.ignored is set to true. This prevents them from
   being unintentionally visible and interfering with the accessibility
   tree when a new delegate item is set.

   See the following page for more information:

   https://doc.qt.io/qt-5/qtquickcontrols2-customize.html#considerations-for-custom-styles

****************************************************************************
*                                 Controls                                 *
****************************************************************************

- Added HorizontalHeaderView and VerticalHeaderView for use with TableView.
- Added selectTextByMouse property to ComboBox.
- [QTBUG-82473] Fixed Menu not taking padding into account when checking
  if it is interactive.
- [QTBUG-73687] Fixed Menu positioning when a scale is set.
- [QTBUG-81867] Fixed hidden SplitView items causing visible items to not
  be resizable.
- [QTBUG-82020] Fixed ComboBox text not being retranslated after a
  translator is installed.
- [QTBUG-79501] Fixed keyboard navigation via tab in non-modal popups
  (i.e. Drawer).
- [QTBUG-78858] Fixed Editable ComboBox's auto-completion performance.

****************************************************************************
*                                  Styles                                  *
****************************************************************************

Material
--------
- [QTBUG-70768] Added missing visual distinction between enabled and
  disabled sliders.
- [QTBUG-70768] Aligned Slider's visuals closer to the Material Design
  guidelines.

Imagine
-------
- [QTBUG-82463] Fixed squished Dial.