Mediawiki 1.23.0 is the first stable release of the new MediaWiki 1.23 release series. This is a Long Term Support release (LTS) and will be supported until May 2017. Continue reading
As the topic implies, we’ll be tuning up a default Mediawiki v1.21 installation for a personal usage.
1.21.5 is the latest stable legacy version of the Mediawiki 1.21.x family and will be discontinued in May 2014. This version should be replaced with a future version of Mediawiki 1.23.x (LTS), which is due to be released in May 2014.