While "Geosoft 9.x" was a long-standing series, recent releases follow a year-based naming convention:
If you already have the software installed, you can often update by navigating to Help > Check for Updates within the application. Recent Versions and Releases Download Geosoft Desktop Applications updated version exe
This recent release resolved previous installation issues. While "Geosoft 9
Legacy versions like 8.5.5 are still indexed by third-party sites, but official support focuses on the 2022+ releases. Installation Steps for the .exe Geosoft Desktop Applications - MySeequent Download Geosoft Desktop Applications updated version exe
For those without a subscription, the free Geosoft Viewer (which replaced the old Oasis montaj Viewer) can be downloaded from the Seequent Viewer section .
These versions officially support Windows 11 .