Dojo, one of the leading open-source libraries and widget sets for JavaScript programming, released its latest version (1.2) yesterday. Dojo, which is developed by the Dojo Foundation and released under both the BSD License and Academic Free License, is officially integrated with a number of Web development frameworks, such as Django and the Zend Framework, and by vendors such as IBM and Sun Microsystems.

Yahoo announced yesterday that it was releasing version 2.6 of its popular Yahoo User Interface (YUI) library, a collection of JavaScript objects and functions for client-side Web programming. YUI, distributed under the BSD license, is similar to such open-source JavaScript libraries as jQuery (see related story), Dojo, and Prototype/Scriptaculous. Note that this release is not the same as YUI 3.0, a preview of which was released earlier this year, and which will not be backward compatible with version 2.x.

Development of YUI 3.0, the latest version of Yahoo's User Interface toolset and widgets for Web development, is now available as a preview release. YUI has long been a popular choice for client-side Web development, both because of its liberal BSD license, and because of the number of features that the library includes. YUI 3.0, when it is released, will offer a variety of new JavaScript classes and widgets. However, this will come at a price, namely compatibility with YUI 2.x APIs.