We should really look at cleaning up extensions that include jquery themselves
Quick look at the extensions directory, there are various inclusions if jquery 1.3.2, 1.4.2, 1.7.1, 1.7.2, 1.8
And then other plugins, oddities and numerous other things
20 folders, 326 other items..
MW svn head has for a while included Jquery for a while, and therefore only conditional inclusion is needed for those that care for back compatibility back to the stone age (*cough*)
Version: unspecified
Severity: enhancement