https://github.com/apple/swift-evolution/blob/main/proposals/0296-async-await.md#overloading-and-overload-resolution

swift-evolution/0296-async-await.md at main · apple/swift-evolution

This maintains proposals for changes and user-visible enhancements to the Swift Programming Language. - swift-evolution/0296-async-await.md at main · apple/swift-evolution

2:39 PM

asyncとsyncのオーバーロードを許す結論が出たのはこのタイミングだけど

2:39 PM

protocol conformanceについての言及は無かったみたいだね