Ext has released version 2.1 of their JavaScript framework. Changes include performance improvements, a new slider control, and a new status bar component. Another major change is the move from an LGPL license to a GPLv3 license. The licensing change has quite a few people up in arms, but personally, I think it is a good move. I like the GPL and its viral nature. If you look at it from the Ext developers point of view, it guarantees that the same freedoms they give to users in their free version are in turn passed along to the users of your software. If you don’t like it, buy a license