Gumbo Downloads

Look here for a description regarding the types of SDKs available.

Look here for an explanation of the different build types found on this page.

Look here for an explanation of how to use a stable or nightly build in Flex Builder.

Please refer to this document to ensure you are targeting the Flash Player 10 beta correctly.

Latest Milestone Release Builds

Milestone Build Build Date Adobe Flex SDK Open Source Flex SDK Adobe Add-ons
Flex 4-Beta 2 4.0.0.10485 Tue Sep 22 2009 Download (ZIP, 108MB) Download (ZIP, 31MB) Download (ZIP, 40MB)
Flex 4-Beta 1 4.0.0.7219 Wed May 13 2009 Download (ZIP, 103MB) Download (ZIP, 30MB) Download (ZIP, 43MB)
Max Preview 4.0.0.4021 Fri Aug 15 2008 Download (ZIP, 82MB) Download (ZIP, 23MB) Download (ZIP, 59MB)

Stable Builds

Build Build Date Adobe Flex SDK Open Source Flex SDK Adobe Add-ons
4.0.0.13875 Fri Jan 29, 2010 Download (ZIP, 136MB) Download (ZIP, 62MB) Download (ZIP, 75MB)
4.0.0.6898 Thu May 14, 2009 Download (ZIP, 103MB) Download (ZIP, 30MB) Download (ZIP, 43MB)
4.0.0.4904 Tue Feb 10, 2009 Download (ZIP, 103MB) Download (ZIP, 30MB) Download (ZIP, 43MB)

Note: If you are using the Flash Builder 4 Beta 2 release with a nightly build of SDK 4 after build 13079, you will encounter a runtime error due to the sparkskins.swc being built and linked as an RSL. To workaround this issue, please make the following modification in Flash Builder: Project->Properties->Build Path->Library Path->Framework Linkage and select 'Merged into code'. This issue will be fixed in the next public drop of Flash Builder.

Nightly Builds

Build Changes Build Date Adobe Flex SDK Open Source Flex SDK Adobe Add-ons Language Reference
4.0.0.13963 view Thu Feb 04, 2010 Download (ZIP, 136MB) Download (ZIP, 65MB) Download (ZIP, 37MB) Download (ZIP, 29MB)
4.0.0.13951 view Wed Feb 03, 2010 Download (ZIP, 136MB) Download (ZIP, 65MB) Download (ZIP, 37MB) Download (ZIP, 29MB)
4.0.0.13895 view Tue Feb 02, 2010 Download (ZIP, 136MB) Download (ZIP, 65MB) Download (ZIP, 37MB) Download (ZIP, 29MB)
4.0.0.13827 view Thu Jan 28, 2010 Download (ZIP, 136MB) Download (ZIP, 62MB) Download (ZIP, 74MB) Download (ZIP, 29MB)
4.0.0.13799 view Wed Jan 27, 2010 Download (ZIP, 136MB) Download (ZIP, 62MB) Download (ZIP, 74MB) Download (ZIP, 29MB)
4.0.0.13771 view Tue Jan 26, 2010 Download (ZIP, 136MB) Download (ZIP, 62MB) Download (ZIP, 74MB) Download (ZIP, 29MB)
4.0.0.13729 view Sun Jan 24, 2010 Download (ZIP, 136MB) Download (ZIP, 62MB) Download (ZIP, 74MB) Download (ZIP, 29MB)
4.0.0.13708 view Fri Jan 22, 2010 Download (ZIP, 136MB) Download (ZIP, 62MB) Download (ZIP, 73MB) Download (ZIP, 29MB)
4.0.0.13654 view Wed Jan 20, 2010 Download (ZIP, 141MB) Download (ZIP, 67MB) Download (ZIP, 73MB) Download (ZIP, 29MB)
4.0.0.13619 view Tue Jan 19, 2010 Download (ZIP, 133MB) Download (ZIP, 59MB) Download (ZIP, 73MB) Download (ZIP, 29MB)