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Release Summary

This open-source release officially launches Qt 5.12.12 LTS adapted for HarmonyOS on the tablet an PC, featuring deep adaptation to the HarmonyOS architecture while fully retaining the core capabilities of Qt 5.12.12, including GUI rendering, signal-slot mechanism, cross-platform I/O, network communication and database modules. This release reduces cross-platform porting costs for developers, accelerates the integration of Qt and HarmonyOS ecosystems, and empowers efficient development of multi-scenario HarmonyOS applications.

License Statement for the Qt 5.12.12 source code adapted for HarmonyOS released this version is as follows:

The license terms for the original Qt 5.12.12 source code remain unchanged. For details, please refer to: https://doc.qt.io/archives/qt-5.12/licensing.html
The newly added code for HarmonyOS adaptation is licensed under both commercial license and LGPL v3 open source license. Please check the header comments of the newly added HarmonyOS adaptation code files for specifics.

Release versions

Please refer to the table below about the release information of Qt5.12.12 HarmonyOS open source package, :


Package Name	Download Link	Sha	HarmonyOS Version
qt-harmonyos-src-5.12.12-20260403	Windows: https://download.qt.io/snapshots/qt/qt-for-harmonyos/5.12.12/qt-harmonyos-src-5.12.12-20260403.zip Mac&Linux: https://download.qt.io/snapshots/qt/qt-for-harmonyos/5.12.12/qt-harmonyos-src-5.12.12-20260403.tar.xz	9affa9320102	API 20+