Flex 3 SDK 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 if you wish to target the Astro beta.
Latest Milestone Release Builds
| Milestone |
Build |
Build Date |
Adobe Flex SDK |
Open Source Flex SDK |
Adobe Add-ons |
| 3.4 |
3.4.0.9271 |
Tue Aug 18, 2009 |
 Download (ZIP, 122MB) |
Download (ZIP, 26MB) |
Download (ZIP, 65MB) |
| 3.3 |
3.3.0.4852 |
Thu Feb 5, 2009 |
Download (ZIP, 121MB) |
Download (ZIP, 24MB) |
Download (ZIP, 63MB) |
| 3.2 |
3.2.0.3958 |
Wed Oct 29, 2008 |
Download (ZIP, 118MB) |
Download (ZIP, 24MB) |
Download (ZIP, 63MB) |
| 3.1 |
3.1.0.2710 |
Fri Aug 15, 2008 |
Download (ZIP, 82MB) |
Download (ZIP, 23MB) |
Download (ZIP, 59MB) |
| 3.0 |
3.0.0.477 |
Tue Feb 12, 2008 |
Download (ZIP, 79MB) |
Download (ZIP, 23MB) |
Download (ZIP, 57MB) |
Stable Builds
| Build |
Build Date |
Adobe Flex SDK |
Open Source Flex SDK |
Adobe Add-ons |
| 3.4.1.10084 |
Fri Sep 18, 2009 |
Download (ZIP, 119MB) |
Download (ZIP, 25MB) |
Download (ZIP, 64MB) |
| 3.4.0.6955 |
Sat May 16, 2009 |
Download (ZIP, 118MB) |
Download (ZIP, 25MB) |
Download (ZIP, 63MB) |
| 3.3.0.4589 |
Mon Jan 19, 2009 |
Download (ZIP, 118MB) |
Download (ZIP, 22MB) |
Download (ZIP, 63MB) |
| 3.2.0.3794 |
Thu Oct 23, 2008 |
Download (ZIP, 117MB) |
Download (ZIP, 24MB) |
Download (ZIP, 63MB) |
| 3.0.3.2490 |
Tue Jul 15, 2008 |
Download (ZIP, 110MB) |
Download (ZIP, 23MB) |
Download (ZIP, 58MB) |
| 3.0.2.2113 |
Tue Jun 17, 2008 |
Download (ZIP, 97MB) |
Download (ZIP, 23MB) |
Download (ZIP, 58MB) |
| 3.0.1.1732 |
Fri May 16, 2008 |
Download (ZIP, 77MB) |
Download (ZIP, 22MB) |
Download (ZIP, 55MB) |
| 3.0.1.1092 |
Fri Apr 04, 2008 |
Download (ZIP, 77MB) |
Download (ZIP, 22MB) |
Download (ZIP, 55MB) |
Nightly Builds
| Build |
Changes |
Build Date |
Adobe Flex SDK |
Open Source Flex SDK |
Adobe Add-ons |
| 3.5.0.12023 |
view |
Fri Nov 20, 2009 |
Download (ZIP, 118MB) |
Download (ZIP, 25MB) |
Download (ZIP, 63MB) |
| 3.5.0.11959 |
view |
Thu Nov 19, 2009 |
Download (ZIP, 118MB) |
Download (ZIP, 25MB) |
Download (ZIP, 63MB) |
| 3.5.0.11898 |
view |
Wed Nov 18, 2009 |
Download (ZIP, 118MB) |
Download (ZIP, 25MB) |
Download (ZIP, 63MB) |
| 3.5.0.11842 |
view |
Tue Nov 17, 2009 |
Download (ZIP, 118MB) |
Download (ZIP, 25MB) |
Download (ZIP, 63MB) |
| 3.5.0.11672 |
view |
Thu Nov 12, 2009 |
Download (ZIP, 118MB) |
Download (ZIP, 25MB) |
Download (ZIP, 63MB) |
| 3.5.0.11618 |
view |
Wed Nov 11, 2009 |
Download (ZIP, 118MB) |
Download (ZIP, 25MB) |
Download (ZIP, 63MB) |
| 3.5.0.11237 |
view |
Thu Oct 29, 2009 |
Download (ZIP, 118MB) |
Download (ZIP, 25MB) |
Download (ZIP, 63MB) |
| 3.5.0.11192 |
view |
Wed Oct 28, 2009 |
Download (ZIP, 118MB) |
Download (ZIP, 25MB) |
Download (ZIP, 63MB) |
| 3.5.0.11086 |
view |
Fri Oct 23, 2009 |
Download (ZIP, 118MB) |
Download (ZIP, 25MB) |
Download (ZIP, 63MB) |
| 3.5.0.10974 |
view |
Tue Oct 13, 2009 |
Download (ZIP, 118MB) |
Download (ZIP, 25MB) |
Download (ZIP, 63MB) |
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