Adobe AIR SDK beta 3 has been released and an update to the Aptana plugin for Adobe AIR development has been released to support the latest SDK and runtime.
More information can be found on the Aptana Studio Start Page (Help->Aptana Studio Start Page...).
You will see links in the Plugins section to obtain the latest Adobe AIR SDK and runtime and if you need to install via an arhived site it is available here.
Please note that you must upgrade to Aptana Studio 1.1 first before installing the beta 3 compatible Adobe AIR plugin.
Please use our AIR forum for questions about moving from beta 2 to beta 3 or any issues you have with the plugin.