*/
#if defined(_MSC_VER)
-# if _MSC_VER < 1800 || (_MSC_FULL_VER < 180031101 && !defined(__clang__))
-# error "Microsoft Visual Studio 2013 Update 4 or higher required"
+# if _MSC_VER < 1900
+# error "Microsoft Visual Studio 2015 or higher required"
# endif
/*