| Platform | Best source | | :--- | :--- | | | https://qgis.org/downloads/QGIS-OSGeo4W-3.28.15-1.msi | | macOS | https://qgis.org/downloads/macos/QGIS-macOS-3.28.15.dmg | | Linux | Flatpak (specify 3.28.15) or build from source | | Source Code | https://qgis.org/downloads/qgis-3.28.15.tar.bz2 |

Follow the WUSTL GIS Installation Guide by clicking Next and accepting the License Agreement.

: For detailed technical support, refer to the QGIS 3.28 Desktop User Guide [4].