449
Linus Torvalds releases Linux 6.6 after running out of excuses for further work
(www.theregister.com)
This is a most excellent place for technology news and articles.
Even more weird: Version 3 was released in 2011. In the same timespan we went from 2 -> 3 we went from 3 -> 6!
2011 is actually the same year Firefox started their rapid versioning to try and match Chrome. There was definitely a shift in versioning styles around then.
I still have my Firefox 3.0 Download Day PDF certificate.