What's new in Flex development support for IDEA 9?

Hi,

We're currently using IDEA 8.1.4 for our Flex development, and according to http://youtrack.jetbrains.net/issue/IDEA-27050 there seem to have been a lot of Flex improvements in IDEA 9.

I am trying to get my company to purchase the next version, but I need to present a solid reason why the new version is better for us.

Is there a list of new features/improvements in IDEA 9 for Flex? (Jira issues/Release notes/anything?)

Thanks in advance,

Nadav