The current version of Igor Pro from Wavemetrics is v9.
Mac System Requirements
Igor Pro 9 runs on macOS 10.13 - 10.14. Igor Pro 9 for Mac is only available as a 64-bit application.
Igor Pro 9 runs on macOS 10.15 (Catalina), 11.0 (Big Sur), and 12.0 (Monterey), but see this discussion of caveats and known issues.
Windows System Requirements
Igor Pro 9 runs on Windows 7 or later. Both 32- and 64-bit applications are installed by default.
Igor Pro and Linux
At the present time, Igor Pro 9 does not run under Linux.
For further technical assistance with this or any other issue, please contact ADInstruments Technical Support by clicking HERE