Well, I posted my previous comment before seeing this. This is good news for Chromebook users, at least.

Since the post says they're gonna finish things by the end of this year and there are already plenty of Chromebooks that they stopped updating... my big unanswered question is, of the Chromebooks they stopped updating, how many of them have a usable enough version of CUPS to still be able to print.

Ignoring, of course, those users that were using Cloud Print to network enable their printer.