@ derula:
Of course, PS (or even the underlying CS) could check for requirements and quit with a useful error message if they are not met. But as long as you can enable "rlcompat" as renderer, it is not PS as a whole which relies on OpenGL 2.0 features.
And furthermore I believe that the OpenGL specs expect drivers to ignore unsupported requests, but not fail. I can't guarantee that, though, I don't have them available to point at it...
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@ ivotkl:
The updater getting stuck at the end of the update is a quite known issue. You may have to kill the process. Then check if you have to make the updated binaries executable again.
And the download of Win64 files under Linux is also a known nonsense. But not serious, beyond wasted bandwidth.