Where was the review for this change?

[Karl]

For more info, see this post:

Changes to Foundation must go through swift-evolution

Hi all, Thanks for starting this discussion. I think it gives us a great opportunity to bring more clarity to our process. Let's start with a clear definition of the projects we're talking about here. Foundation Foundation is a framework and Swift "overlay" that ships with each version of macOS, iOS, watchOS, and tvOS (sometimes collectively referred to as "Darwin"). It is closed source, written in a variety of languages (C, Objective-C, and Swift), and uses an Apple-internal process for evol…