QGIS (previously known as *quot;Quantum GIS*quot;) is a cross-platform free and open source desktop geographic information system (GIS) application that provides data viewing, editing, and analysis capabilities.
Every version of each package undergoes a rigorous moderation process before it goes live that typically includes:

  • Security, consistency, and quality checking

  • Installation testing

  • Virus checking through VirusTotal

  • Human moderators who give final review and sign off

Binary packages (installers) are available from this page.
The current version is QGIS 3.6.0 'Noosa' and was released on 22.02.2019.
The long-term repositories currently offer QGIS 3.4.5 'Madeira'.
QGIS is available on Windows, MacOS X, Linux and Android.
Download Link:
QGIS Standalone Installer 3.6 (32bit)
QGIS Standalone Installer 3.6 (64bit)