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September 1, 2009

What is Flex 4

For the latest information on the next major release of Flex SDK and Flash Builder 4(codenamed “Gumbo”), check out the Flex 4 page on the Adobe Open Source site: The Flex 4 page includes the latest milestones, as well as links to the various public specifications. Also, you can check out the Flex 4 page on the Adobe Labs site at

To download nightly builds of the Flex 4 SDK, check out

For the latest Flex 4 documentation, check out and (as well as some Flex 4 beta chapters at the bottom of

If you think you’ve found a bug in the Flex SDK or in Flex Builder (any versions), you can file a bug in the public bug base at

For a list of Flex 4 specific examples on this blog, check out

Want a free version of Flex Builder 3? Check out and see if you qualify! Then, head over to the Adobe Flash Builder 4 Beta Extension Request site to request a Flash Builder 4 beta serial number. (Flash Builder 4 beta extension serial numbers are available for all licensed Flex Builder 3 customers. This includes all commercial and education serial numbers.)

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