Commercial LTS Qt 6.5.12 Released

 We have released Qt 6.5.12 LTS for commercial license holders today. As a patch release, Qt 6.5.12 does not add any new functionality but provides bug fixes and other improvements.

You can add Qt 6.5.12 to the existing online installation by using the maintenance tool, or do a clean installation by using the Qt Online Installer. Offline installers are available in the Qt Customer Portal download area.

Note! If you like to get information about Qt Commercial LTS releases via email, please join Qt's Announce mailing list.

Fixed Bugs and Important Changes

Compared to Qt 6.5.11, Qt 6.5.12 contains about 180 bug fixes, security updates, and other improvements.

The list of fixes and the overview of all important changes in Qt 6.5.12 can be found in the release note. It is available via Qt Customer Portal: in Downloads, select Product: Qt and Version: 6.5.12.

Getting Qt 6.5.12

Holders of a valid commercial license can add Qt 6.5.12 to the existing online installation using the maintenance tool, or perform a clean installation using the Qt Online Installer. Offline installers are available in the Qt Customer Portal download area.

Accessing Sources

If you want to access the source code repository, you can do it via the Codereview system. Just log in with a Qt Account that has a valid commercial license, and you will be able to access the LTS repositories. For more details, please check the instructions for accessing the commercial LTS repositories.

Accessing Qt for Python

Qt for Python 6.5.12 release is available via Qt Online Installer and Qt Customer Portal. In Downloads, select as follows:

• Product: Qt for Python Commercial Wheels, Version: Qt for Python Commercial Wheels 6.5.12
• Product: Qt for Python (Commercial LTS), Version: Qt for Python (Commercial LTS) 6.5.12

Building with Yocto

Qt for Device Creation images are available for Qt 6.5.12 LTS. If you want to build yourself with Yocto, set up Gerrit and use the meta-qt6 layer from the Qt repository. We have updated the Yocto meta-qt6 layer of Qt 6.5.12 to point to the commercial LTS repositories. For more details, please check the instructions on using yocto with access to the commercial LTS repositories.

Support

If you have any problems with the commercial LTS releases, please contact Qt Support. You can also create bugs at https://bugreports.qt.io, but in addition, it is recommended to notify the support team about it.

Qt 6.5 LTS End of Support

Standard support for Qt 6.5 will end after April 3, 2026.  After that, the release will be in EoS (End of Support) state and will only be supported through additional services. Customers distributing applications and embedded devices using Qt 6.5 should evaluate how to access technical support and maintenance patches, which may include security fixes. Standard commercials terms still apply after the End of Support. 

Customers who intend to extend their ability to maintain and secure their Qt 6.5-enabled devices and applications can now purchase a service subscription to Extended Security Maintenance. Find out more about Extended Security Maintenance here.   

See the blog post https://www.qt.io/blog/qt-6.5-reaches-end-of-support for more information about options for legacy Qt 6.5 and updating to the latest Qt 6 version.