Edit : I changed the title since visitors seems to already read it and post comment to help me install Flex 4.9
Since it's still not clear if Adobe AIR and Apache Flex will evolve together or not, I previously said I won't use Apache Flex 4.9.
But, in the release note (can't find it anymore), I read it was possible to use Flash Player version as low as 10.2
I never understood why a new Flex SDK needed the last Flash Player version so it seems the Apache team finally fixed this non-sens...and give me a reason to install Flex SDK 4.9
I first tried to install Flash Builder 4.9 with the installer : FAIL => you need full rights to use it, which is rarely the case in big corporation.
So I followed the manual way but, since I don't see the point to install ant just to download and unzip files, I handled the dependencies myself.
It was the best choice since I simply used the file I already had on the 4.6 sdk folder, not waited for the download of the 4.6 SDK archive.
But, I failed to add the SDK on Flash Builder...
adt.jar not found
Great...the new SDK doesn't work on Flash Builder....
Sorry, but I can't work without my favorites Eclipse plugins, like Subclipse and some others...
How to use it without IDE ? Flash Builder ? FDT ? CLI ?
So, let ask google ! ... wait...there is an issue on Apache's JIRA !
In fact, the only thing to do is to call ide/flashbuilder/makeApacheFlexForFlashBuilder.bat !
Ok, it finally works...but why should I call makeApacheFlexForFlashBuilder.bat ?
From the realease note, it seems it's because they changed the folders architectures to something more useable ... well..not in Flash Builder it seems...
makeApacheFlexForFlashBuilder.bat also patch Apache Flex 4.9 with the last Adobe AIR SDK ... while only AIR 3.1 is officialy supported
Edit : from comments below, it seems the README point me to the wrong direction, you haven't to recompile the SDK for 10.2 support
so, got 4.9 SDK on FB4.7 but I'm still using 4.6 SDK !