MSVC standard version switches

Visual Studio C++ 2015 Update 3 introduced standard version switches [1].
They seem to only make sense for >= C++14 which I assume becomes relevant with the changes in !299 (merged) (#16468 (closed)).
Specifically for C++17 features /std:c++latest (and later /std:c++17) might be required.

[1] https://blogs.msdn.microsoft.com/vcblog/2016/06/07/standards-version-switches-in-the-compiler/