ASNA products are refreshed on a regular basis. Here are the latest product versions and their download links. 

Product Version Notes
ASNA Visual RPG for .NET Requires VS 2015
DataGate for IBM i IBM i V5R4+
DataGate for SQL Server IBM i V5R4+/SQL Server 2008 R2/2012
Wings Requires VS 2015/DG 14.x
Mobile RPG Requires VS 2015/DG 14.x