Swift Evolution Acceptances
The automatic translation effort (SE-0005) has dropped its effort to strip NS from the start of API names (for the moment, a revised version will return as its own proposal). It adopts the API guidelines in bringing Cocoa signatures into the Swift world.
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First-argument labels are something that have evolved first from Swift 1 to a more Objective-C like Swift 2 and now to a more Swift like Swift 3. They’ve reached a state that’s somewhere between pure C and pure Objective C, hopefully with a better balance than the previous two incarnations.
Previously: Better Translation of Objective-C APIs Into Swift.