问题
Where can I find a chart or some article to compare Flex 3 and new 4.
回答1:
The official Adobe Flex 4 Open Source site is currently the best place to find information about this upcoming version of the framework. It's worth noting, however, that Flex 4 is still in development, and they don't even consider it beta yet. This could change significantly between now and the final release.
UPDATE:
Beta 1 released 1 June 2009.
来源：https://stackoverflow.com/questions/640791/compare-flex-3-and-4