Yah, some months ago I upgraded a wordpress 2.3.3 (released in 2008, http://codex.wordpress.org/Version_2.3.3) to version 4.1 :) I only needed to fix some minor problems!
I will wait 5 years from now to see if I can move from this 4.1 to another one. Sorry Wordpress 4.3 ;)
I wouldn't suggest keeping in client machine on an older release, much less on a 2,3,4 or 5 year old release as you suggest, and leaving it in 2.3.3 until now is downright criminal with all the security fixes that have come out since then.
Of course, there is no more comments and dynamic contents. But I don't care ;)
WordPress 4.3 generated a lot of buzz since it was released. The most intriguing thing that I personally like was that Konstantin Obenland committed a release date for WordPress 4.3 and it was delivered on time.
Read more reactions from a blog post that we compiled at Cloudways blog.
http://www.cloudways.com/blog/wordpress-4-3-community-review...
Here's the official announcement: https://wordpress.org/news/2015/08/billie/
But no, I didn't scroll far enough, there is indeed content there worth linking to. Therefore no, I was wrong, this is not blogspam, it just really looked like it.
Your snark and the downvote brigade are not appreciated.
He adds in a link and some value even if you feel the sentament is negative...