I did a quick search here and didn't find anything on this. But I just patched up VS2015 with 'Visual Studio "15" Preview 5' https://www.visualstudio.com/news/releasenotes/vs15-relnotes and downloaded boost_1_62_0 The compiler now handles variable templates and I've compiled and run some simple hana tests. I did have to comment line 74 in "..\boost\hana\config.hpp". I just thought I'd drop a heads up for those, like me, that wanted to use hana with the Microsoft compiler. Best, Dan.