Compiler Upgraded to VC11
3ds Max 2015 has been built with version 11.0 of the Microsoft C/C++ compiler toolset which comes with Visual Studio 2012 Update 4. Plug-ins built for 3ds Max 2015 must be built with Visual Studio 2012 Update 4, Platform Toolset v110.
.NET projects can continue to target .NET 4.0 or .NET 4.5.