Hi Jack
On the http://greensock.com/gsap-1-18-0 page I couldn't leave a comment even though I was logged in.
Anyway you said "...these changes are for HTML5/JS only. Demand for the Flash version is tiny now that browsers are phasing Flash out, so all of our attention is on the HTML5/JS toolset at this point."
Demand may be tiny and I understand your business decisions but please don't forget those of us still actively developing AIR and Flash applications. For instance our business uses a custom network media delivery system running in AIR/Flash and we are constantly developing new AIR kiosk apps and indeed hiring Flash devs to do so (when we can find 'em).
cheers
DC