[benbreen]

n=1 of course, but I've been using the beta on a 2013 Macbook Pro for a couple months now with no problems besides Safari crashing more often than usual. No issues with Photoshop and performance generally seems better than Mavericks.

[qqz]

Same here, on a 2012 Air. Performance is great but I've noticed a couple Safari crashes/freezes. Finder crashed once I think. Also had trouble with Dark Mode+Reduce Transparency, but those are just beta issues and since GM1 the only issue has been the weird black corners of the volume popup.

[alantinard]

I wish they would support even older hardware, my 2008 mac mini is just crying for an update.

[jayseeg]

10 year backward compatibility crippled MS. I'm not sure where the line is, but 6 years seems pretty old too.