[austinz]

To be clear, that document contains brainstorming by some core Swift team developers. It's neither implemented in Swift nor officially accepted as a guideline for future development.

[stevetrewick]

"The implementations of the thread-safety layer, the thread verifier, and programs that use the three concurrency libraries are available in the concurrency git branch."

[austinz]

"This is a proposal and not a plan of record."

Not only that, the git feature branch, if it ever existed, doesn't anymore.

[stepanhruda]

Oops, thanks, I should've been clearer.