Gaia 3.1.7 has a bunch of improvements.

You can now set a version for your site to force reloading of swfs. You can set domain in the site node for the entire site so you don't have to do it on a per page basis. The Pages class now has every page in the site.xml. setPreloaderDelay now works with the asset preloader. afterComplete no longer takes a hijack argument. The DeMonster Debugger class is now distributed with Gaia. SWFObject has been updated to 2.2. Thunderbolt has been updated to 2.2. The event metadata had incorrect class paths. Gaia header comments have been removed from scaffolded page classes. Finally, on Windows a FlashDevelop project file is automatically generated when you create a new project.