jQuery UI 1.8 has been around for a little while now. In fact, it’s currently on version 1.8.16. jQuery UI 1.9 is under active development and brings a number of new widgets to the table, along with the usual improvements in stability and performance.
The biggest changes are, of course, the new widgets themselves, but there have also been modifications to some of the existing widgets. We’ll look at the new widgets first. The widgets are in the advanced stages of development, but you should be aware that the widget’s APIs are still subject to change until they are fully finalized.
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