Explanation on our wiki: Macro _MSVC_STL_UPDATE

Code:

⚠️ Special for this month! We're beginning work on Visual Studio 18, whose toolset will identify itself as "v145" (long story), so _MSVC_STL_VERSION also needs to be updated from 143 to 145.

Previous issue: #5384

This issue is intended for a new contributor (especially one new to GitHub) to get started with the simplest possible change.

Please feel free to submit a pull request if there isn't one already linked here - no need to ask for permission! 😸

You can (and should) link your pull request to this issue using GitHub's close/fix/resolve syntax (in the PR description, not the PR title or commit message).