I have done some initial testing with the release version of High Sierra, and so far there are only small issues. Right now I would not recommend to jump to High Sierra on a production system, though. Plus, I haven´t tested on an APFS startup volume (external SSDs don´t get converted to APFS automatically), so this could be a cause of problems that needs to be tested before being able to say something more reliable.
Just upgraded to High Sierra, now M100 won't launch. Crashes upon launch. Anyone have ideas? Also, the media100.com site is not loading, so I can't find an installer anywhere. If anyone has the right link to download that would be great!
Did you resolve any of those problems Ethan?
I find the Media100 website doesn't load if it's http://media100.com and does load if it's http://www.media100.com so I don't know if the problem was just as simple as missing the www.
As for the program crashing on launch, that's far worse than the minor problems Floh was referring to as encountered so far, =S. Good idea of yours to perhaps look for the installer and try a re-install.
Of course, you may have already done this by now - so how did it go? =).