expect_version
The option documentation is properly formatted yet
Summary: Expect Specific FS-UAE Version Default: Example: 2.7.12dev
Warn if the FS-UAE version does not equal the value of this option. Used by FS-UAE Launcher to verify that there is not an older FS-UAE version in use by accident.
Source: https://github.com/FrodeSolheim/fs-uae/blob/master/docs/options/expect_version