Ok, even though I had written that I previously did that, I went through the MC26 "NEW" features. Extremely inconvenient way to see what's new. I'd think JR would have an easy-to-read list of new features to convince customers to upgrade. It's not reasonable to expect anyone to go through hundreds of little items, one by one, to see the changes.
Anyway, having gone through the list, 99% look like very low-level search/edit/tag stuff. A bunch of TV features that don't apply to the Mac version (why don't the release notes specify items that only apply to some versions?).
The only item that looked at all interesting was the "wake" word and voice command. However, I have no idea if this works on a Mac.