Strict Memory Safety on Windows

I’m working with some of the new strict memory checking APIs to write safer code when interacting with C code, such as converting some of the UnsafeMutablePointer APIs to use MutableSpan. This all works well, but looks like this hasn’t been implemented for Windows. Am I missing something or is this a missing feature?

See Vapor Authentication 3 by 0xTim · Pull Request #73 · vapor/authentication · GitHub for the PR, with usages here and the Windows failures here