Download Flex 4.5

SourceForge Editorial Staff SourceForge Editorial Staff Alex Harui

Flex 4.5 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.

Milestone Builds

You can review the Flex SDK Hero Preview Release Notes here.

Milestone Build Build Date Adobe Flex SDK Open Source Flex SDK Adobe Add-ons
Flex 4.5.1 (Release) Mon Jun 20, 2011 Download (ZIP, 209MB) Download (ZIP, 131MB) Download (ZIP, 163MB)
Flex 4.5 (Release) Tue May 3, 2011 Download (ZIP, 229MB) Download (ZIP, 131MB) Download (ZIP, 163MB)


Wiki: Build Types
Wiki: Downloads
Wiki: Flex 4.5
Wiki: Versions
Wiki: flexsdk_announcements


  • Ryan

    Ryan - 2012-04-27
    Last edit: Ryan 2012-04-27
  • zeleniy

    zeleniy - 2012-04-29

    Hello!! There is no work download links on this site!

  • John O

    John O - 2012-05-04

    Hey @Adobe - we need some working links to download these SDKs.

  • shoaib

    shoaib - 2013-10-22

    hmm now donwloading... Big thanks :)


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