[Announce] Qt for HarmonyOS 5.12.12 Released

[Liang Qi]

https://lists.qt-project.org/pipermail/announce/2026-April/000617.html

Hi, all,

Based on Qt 5.12.12 LTS, deeply adapted for HarmonyOS, facilitating efficient cross-platform application deployment.

We officially announce the release of the open-source version of Qt 5.12.12 for HarmonyOS to the community.

This release is based on the Qt 5.12.12 LTS adapted version, targeting HarmonyOS tablets and PCs. While fully retaining the core capabilities of Qt, it has undergone deep adaptation for the HarmonyOS platform, covering key capabilities such as GUI rendering, signal and slot mechanisms, cross-platform I/O, network communication, and database modules. It also further enhances support for native HarmonyOS capabilities, including ArkUI compatibility, window management, and permission adaptation.

For developers, this means they can continue to more efficiently develop, port, and evolve HarmonyOS applications based on their familiar Qt technology stack, reducing cross-platform adaptation costs, accelerating product deployment, and further promoting the integrated development of the Qt and HarmonyOS ecosystems.

The Qt 5.12.12 source code released this time supports the following licenses:

• Commercial License

• LGPL v3 Open Source License

• GPL v2 Open Source License

• GPL v3 Open Source License

• Chinese Wiki Page: https://wiki.qt.io/Qt5.12.12_Open_Source_Release_for_HarmonyOS_zh

• English Wiki Page: https://wiki.qt.io/Qt5.12.12_Open_Source_Release_for_HarmonyOS

Qt continues to provide a mature and stable cross-platform development framework, while HarmonyOS continues to expand its multi-device, multi-scenario application ecosystem. The official open-sourcing of Qt for HarmonyOS 5.12.12 will help developers more smoothly bring their existing Qt experience to the HarmonyOS platform, improving development efficiency and expanding the scope of technology implementation.

Developers are welcome to visit the release page for more details, and are also welcome to experience, provide feedback, and participate in ecosystem building.

If you are interested in the collaboration between Qt and HarmonyOS, please feel free to share, save, and discuss further technical cooperation opportunities with us.

Note:

• This is source package only release.
• We are in the process of upstreaming HarmonyOS adaptation onto newer Qt editions.
• https://mp.weixin.qq.com/s/cO32Kyq_zlW_2rzUGObHYA (WeChat Official Account Article in Chinese)

Best regards,
Liang Qi
Qt for HarmonyOS team