This exists in RENXT and FENXT (see screenshot), and I've found it the best way I've found to keep up with product updates. Far better than going to the blog from the "What's New" flyout. I'm subscribed to the blog for updates, but we all know how hard it is to catch everything in our inbox.
I think this should be implemented, but in the meantime I just wanted to mention that there is a link you can bookmark will take you to the 'What's New' page, without needing to click through the flyout:
https://webfiles-sc1.blackbaud.com/files/support/helpfiles/education/k12/full-help/content/whats-new.html?