What is the preferred way to upgrade mediawiki from 1.15 which appears to be the TK default (as in Debian's and Ubuntu's version) to a more recent version of mediawiki, which is currently at 1.17? The Debian and Ubuntu packages have not updated in some time. Ubuntu/Debian also put parts of mediawiki in a somewhat different place than if you tar xvf the mediawiki download into /var/www.
It would also be great if a mediawiki appliance could be released that has ver 1.17. There are some features that don't seem to work properly in the older 1.15 version.