This release took sometime but we did lots of big improments so it should be worth the wait. :)
Changes:
General UI and localization fixes and improvements
New Bookmarks panel added for an overview of all your open documents bookmarks
Captures Flash CS3 compiler errors in FD results panel when CS3 is called from FD
Contextual generators (Ctrl+Shift+1) for getter/setter, event listeners, override methods, interface implementation, unknown var/method
New in templates, set package of new project. Creates the main class with the package you provide
You can run your project in your web browser instead of FD or external player
Less agressive and generally smarter completion
Improved Flex Compiler support
Improved Flash CS3 support
+ Other nice things that we forgot... :)
Read more: http://www.flashdevelop.org/community/viewtopic.php?t=2574