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Firefox 124.0 Release Notes
(www.mozilla.org)
A place to discuss the news and latest developments on the open-source browser Firefox
I would sincerely advocate for year.month or year.release model so that typical users can figure out how outdated their software is. An average person is usually terrible at keeping software up to date.
At least for Firefox the average person is getting updated automatically. They'd need to go into about:config to turn it off.