I noticed that the jQuery version packaged with Confluence has been upgraded, but I'm not sure what version it has been upgraded to and I'm not entirely sure how to find out. I've found that jquery has been listed in the pluginServiceContext but I don't see a version there. I've also found that there's a jquery-1.6.4.js library in the confluence-qunit-test package, but I don't want to rely on that since it probably isn't shipping as part of confluence.