Some of the notable features of Qt 5.15.2 include:
⚠️ Many third-party sites repackage installers – always verify checksums against Qt’s official mirrors. qt 5152 offline installer
Once downloaded, you can manually copy the resulting folder to any offline machine and configure it as a "Kit" in Qt Creator Important Compatibility Notes Qt Installer Framework 4.1 Released Some of the notable features of Qt 5