jQuery UI 1.8rc2

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The second release candidate for jQuery UI 1.8 is out and ready for testing. You can download it here:


File Downloads



See the 1.8rc2 Changelog for what’s been fixed since 1.8rc1. For a list of all issues fixed since 1.7.2, see previous 1.8 changelogs.

Upgrade Guide

A full Upgrade Guide for easing the transition between 1.7 and 1.8 is in the works. This will be ready in time for the final release. In the meantime, one of the more significant (and breaking) changes in 1.8 already documented there is a refactor of the widget factory. This means anyone that has built their own plugin that uses the widget factory will need to make a number of changes for compatibility with 1.8. For a view of these changes, see the widget factory section of the Upgrade Guide. Also, see this sample implementation of a simple widget with both the 1.7 and 1.8 widget factories, and the differences, by Scott González.

Plan for 1.8 final

We hope to release jQuery UI 1.8 final after a couple days, assuming there aren’t any blocking issues present in this release candidate.


A big thanks to all that have worked on all the bug fixes and other improvements that have gone into this release. We’ll have a proper listing of all contributors in the final release announcement.

How to report issues

If you find any issues in this release, please do not put them in comments on this post, but instead head over to the Developing jQuery UI Forum. Thank you.

jQuery UI Download Builder/ThemeRoller Status

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NOTICE: The Download Builder and ThemeRoller have been restored to working order again.  Thank you all for your patience.

We are aware of the problems with the Download Builder and ThemeRoller and we apologize for any inconvenience this has caused.  We have disabled those components on our web site until the problems with these components can be resolved.  In the meantime, we would like to offer these static links for jQuery UI and jQuery UI Themes.  The Development bundle includes code for all jQuery UI plugins and the base theme.  The Themes Package includes all 21 pre-built themes from the ThemeRoller gallery.

jQuery UI 1.8rc1 (Preview)

jQuery UI 1.7.2 (Stable)

jQuery UI 1.6 (Legacy)

Google CDN

Multiple stable versions of jQuery UI are hosted on Google’s CDN as well as all the ThemeRoller themes for 1.7.2: base, black-tie, blitzer, cupertino, dark-hive, dot-luv, eggplant, excite-bike, flick, hot-sneaks, humanity, le-frog, mint-choc, overcast, pepper-grinder, redmond, smoothness, south-street, start, sunny, swanky-purse, trontastic, ui-darkness, ui-lightness, vader.

With Download Builder and ThemeRoller out of commission you will not be able to create custom downloads or themes. We understand that this is inconvenient and we are working as hard as we can to solve the problems as soon as possible. Thank you for your patience!