建议普通用户或组织部署使用OSGeo4W安装程序。它允许在一台设备上安装多个QGIS版本，并可使每个组件单独更新，而无需下载整个安装包。

自 QGIS 3.20 开始，我们只提供64位Windows可执行安装文件。

macOS High Sierra (10.13) or newer is required. QGIS is not yet notarized as required by macOS Catalina (10.15) security rules. On first launch, please control-click on the icon and choose Open from the context menu, after which a confirmation dialog is shown and you need to click the Open button.