jQuery UI 1.9 Milestone 7 – Accordion

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The seventh milestone release for jQuery UI 1.9 is out. As its been seven months since our last milestone release, we’ve got a lot of improvements and bug fixes to share. Most notably, the Accordion widget redesign is done.

What’s a Milestone Release?

A milestone release makes it easier to try out the latest development code of jQuery UI without necessarily having to check out code from GitHub.

With a milestone release you can try out new widgets that are pretty far along (though not yet final) and provide feedback based on released code with a specific version number.


The Accordion redesign is now fully implemented. We finally have really solid animations, with no more flickering or jumping of content below. The ARIA implementation also got a lot better. A big thanks goes to Hans Hillen for his contributions.


Menu now supports other markup than just UL/LI elements. Support for disabled menu items got a lot better, too.

A ton of bug fixes

A lot of components have seen a lot of bug fixes. While we continue to maintain the 1.8 branch, a lot of bugs get only fixed in master. Here are all tickets fixed in 1.9, by component.


You can download the jQuery UI 1.9 Milestone 7 – Accordion release as a zip file or via git:

File Downloads


How to Provide Feedback

wiki page

To help with the testing of the Accordion widget, visit the Accordion page on our Development & Planning wiki.


If the comments section on the wiki page doesn’t provide enough room for your feedback, post to the Developing jQuery UI Forum and tag the post:

How to Contribute Code

If you have code changes for the Accordion widget, fork jQuery UI on GitHub and submit a pull request.

If you’re new to git or GitHub, see our guide: How to submit a fix to jQuery UI – The Easy Way.


Note: please do NOT use the comments section of this blog post for feedback on the Accordion widget. This discussion should occur on the wiki page and the forum (see How to Provide Feedback, above).

If you have feedback on us doing our sixth milestone release, feel free to leave a comment below. Thank you.