This new version includes more functionality with the new GUI in JAVA Scriptjunkie, replacing the old msfgui. From this new interface you can now control Nessus, VMWare.
The possibility of importing Retina and Netsparker databases has been expanded and now you can also export to XML with the same command db_export as always.
For more details see the list of changes in version 3.5.
But most importantly, as promised, Metasploit Framework will remain free and still available under the same BSD license.
Source: Metasploit Blog

