Qt 5.12.2 is a bug-fix release. It maintains both forward and backward compatibility (source and binary) with Qt 5.12.0 through 5.12.1. 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 5.12 series is binary compatible with the 5.11.x series. Applications compiled for 5.11 will continue to run with 5.12. 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 5.12.2 Changes * *************************************************************************** QtBluetooth ----------- - Added documentation improvements to QBluetoothServiceDiscoveryAgent. QtNfc ----- - Fixed exceptions on Android WearOS devices because those devices not supporting NFC. *************************************************************************** * Platform Specific Changes * *************************************************************************** Android ------- - [QTBUG-72681] Fixed wrong reversing of service uuids when calling QBLuetoothSocket::connectToService(). - Fixed a crash when destroying QBluetoothDeviceDisocveryAgent during an ongoing scan. - [QTBUG-73571] Fixed tst_QBluetoothServiceDiscoveryAgent::tst_invalidBtAddress() which was failing on Android. iOS/macOS --------- - [QTBUG-73140] Fixed a crash in QBluetoothDeviceDiscoveryAgent when the user turns off Bluetooth while a scan is running. Linux/BlueZ ----------- - [QTBUG-72800] Addressed bug where a discovered custom uuid was not returned via BluetoothServiceInfo::serviceUuid() but as serviceClassUuids().