jQuery v1.2.6 is now official and release notes have been posted: http://docs.jquery.com/Release:jQuery_1.2.6
The biggest changes are improvements in performance, especially event handling, which is now 103% faster.
Also, the Dimensions plugin is now part of core. The remaining methods of the Dimensions plugin, by Brandon Aaron, have been introduced into jQuery core, along with additional bug fixes and performance improvements. This plugin has seen considerable use amongst developers and plugin authors and has become a solid part of the jQuery ecosystem. We've been, slowly, introducing the most-used methods from the Dimensions plugin over the past couple releases - but with the release of 1.2.6 all remaining methods are now part of core.
If you're upgrading your copy of jQuery to version 1.2.6 you can now opt to exclude the Dimensions plugin from your code.
There are plenty of other updates so please read the release note for full details.
http://docs.jquery.com/Release:jQuery_1.2.6 The jQuery Team...
