JQuery

We have been shipping the jQuery JavaScript library with MediaWiki since the 1.16 release. Currently MediaWiki ships with jQuery version 1.3.2 with some patches by Trevor Parscal and Roan Kattouw to fix jQuery bug #5081 (see r60697 and r61700).

The jQuery file is in skins/common/jquery.js and the minified version is jquery-min.js in the same directory. The minified file can be regenerated by running make in that directory.

Extensions can use OutputPage's includeJQuery method, which has existed since r61431, to avoid loading minified version of jQuery core multiple times. It should be noted that includeJQuery does not support jQuery plugins and such.