Only select these if you are doing mobile development.
: If you need to add components later, use the MaintenanceTool.exe located in your installation folder. qt 5152 offline installer
users: You can download 5.15.2 offline installers only from the official archive if you log into a Qt account. No further patch releases beyond 5.15.2 are provided OSS. Only select these if you are doing mobile development
Following the download, the installation process is straightforward, though it requires specific handling for open-source users in 2026. Installing on Windows No further patch releases beyond 5
Go to (or Qt Creator > Settings > Kits on macOS).
Official for Qt 5.15.2 are restricted to commercial users only. If you are an open-source user, you must use the Qt Online Installer and select the archived version from the component menu. 🛠️ How to Install Qt 5.15.2