Version 6.5 BETA is the current release, which introduced a lot of new maps and some key bug fixes for the framework. Check out the change log for more information.
Version 7.6 as the latest development release. It is available as C# source code on the github repository. Any bugs should be reported either on the BI forums or through Github.
Thanks to the tacticalgamer.com guys in particular MadSoloSniper, |TG-189th| Unkl and |TG-355th| woesterudolf for testing and feedback and testing of missions developed using Anvil. Also thanks to BI forum user 10T for some of the maps and to LeoLawnDart for exporting others for me. Finally thanks to BI themselves for such permissive licensing arrangements and a very editable game!
As of version
6.5 a very wide range of maps were added. There is also a "one click" download button to install these maps. Altis and Stratis are bundled with the editor but all other maps should be downloaded directly through the Anvil Editor UI. See the section on "Acquiring Maps" for more information.