Qt 5.12.3, the third patch release of Qt 5.12 LTS, is released today. While not adding new features, the Qt 5.12.3 release provides a number of bug fixes, as well as performance and other improvements.
Compared to Qt 5.12.2, the new Qt 5.12.3 provides almost 200 bug fixes. For details of the most important changes, please check the Change files of Qt 5.12.3.
Qt 5.12 LTS will receive many more patch releases throughout the coming years and we recommend all active developed projects to migrate to Qt 5.12 LTS. Qt 5.9 LTS is currently in ‘Strict’ phase and receives only the selected important bug and security fixes, while Qt 5.12 LTS is currently receiving all the bug fixes. Qt 5.6 Support has ended in March 2019, so all active projects still using Qt 5.6 LTS should migrate to a later version of Qt.
Qt 5.12.3 is available via the maintenance tool of the online installer. For new installations, please download latest online installer from Qt Account portal or from qt.io Download page. Offline packages are available for commercial users in the Qt Account portal and at the qt.io Download page for open-source users. You can also try out the Commercial evaluation option from the qt.io Download page.
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