Is there any news on whether concurrency will in fact be back deployed to older OSes? because, as we said before, it's technically challenging and we're not 100% sure it'll work out.

このコメントが、実現可能だけどもう少し問題解決に時間がかかるなのか、やってみてやっぱりちょっと難しいかもなのか、どっちなんですかねー

https://forums.swift.org/t/swift-concurrency-back-deployment/51908/3

Swift concurrency back deployment

The PR you linked is one of dozens of changes needed to make this work, which have been landing over the last few weeks and span LLVM, Clang, and Swift. The specific PR enabled the build of back-deployment versions of the Swift concurrency library. These are different versions of the shared libraries (libswift_Concurrency.dylib) that would have...