Some of the real goodies are on the Changes for Developers page. Things that will immediately fill holes are:
That entire page is worth a quick read :)
uh oh we just added these hot 4 features, better bump up the major version!
Well, it’s not like Firefox follows SemVer.
Firefox used to adhere to a strict 6-week train model of promoting features to release. Now they publish a 6-to-8 week schedule for the year, for the same process. It’s actually quite cool, I’d recommend checking out the first link if you’re not familiar with the train model.
Didn’t they change their model when chrome started pumping out versions like crazy? I seem to remember using FF 3 for ages and 4.0 being a big deal.
Oh, I see. I was under the impression that they didn’t increase the rate of releases but just bumped the major version number up more often to make it seem like they were making more progress (like chrome).