I've just upgraded a couple of our wikis with the 1.19.2 tarball. It was wonderfully smooth and everything just worked. Nice one.
A suggestion: How feasible would it be for the upgrader to (a) detect extensions in use (b) check their mediawiki.org page re: upgradeability [template-scraping] and give their status?
I ask because one wiki had a twisty maze of extensions, some upgradeable, some unchanged and one which had changed name (ArrayExtension->Arrays).
I realise the extension distributor project attempts to be a complete solution to including a rewrite of apt-get in MediaWiki ... but I'm thinking of a simpler thing that would only retrieve and list status.
- d.