Revision control
++ 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:
++
++
++ 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:
++
++
++ Each of these identifiers can be entered in the bug tracker to obtain more
++ information about a particular change.
++
++ ****************************************************************************
++ * QtPositioning *
++ ****************************************************************************
++
++ - QGeoPolygon:
++ * Fixed contains method.
++
++ - serialnmea plugin:
++ * [QTBUG-82819] Fixed serialnmea plugin initialization when used with serial port.
++
++ - [QTBUG-81069] Fixed a dangling pointer issue in QML PositionSource API.
++
++ - Fixed QGeoCoordinate::CoordinateFormat missing Q_ENUM.
++
++ - Removed the usage of deprecated APIs from other Qt modules.
++
++
++ ****************************************************************************
++ * QtLocation *
++ ****************************************************************************
++
++ - Added optional Argument to Map.fitViewportToMapItems.
++
++ - Fixed a memory leak related to MapObjects.border.
++
++ - Updated the 3rdparty library earcut.
++
++ - Fixed Map*ObjectsQSG implementation triggering QSGBatchRenderer crashes.
++
++ - Ported Map*ObjectPrivateQSG to the shader-based projection geometries.
++
++ - Fixed segmentation fault due to null pointer usage in qdeclarativepolylinemapitem.cpp.
++
++ - Removed the usage of deprecated APIs from other Qt modules.