MaintenanceTool.exe --mirror https://mirrors.tuna.tsinghua.edu.cn/qt
As an LTS version, it receives crucial security patches and bug fixes. download qt 5.15.2 offline installer
: Provides a full, standalone executable for offline installation. 2. Open Source: Use aqtinstall (Recommended) MaintenanceTool
If you have a commercial license, the offline installers are readily available in your account dashboard. Log in to the . Navigate to the Downloads section. Select Qt 5.15.2 from the version dropdown. download qt 5.15.2 offline installer
Example: aqt install-qt windows desktop 5.15.2 win64_msvc2019_64