The most annoying thing about Swift 3's naming conventions is that some renamed members now shadow frequently used global functions:

shadow.swift

extension Array where Element: Comparable {
  func clamp(from lowerBound: Element, to upperBound: Element) -> Array {
    return self.map { min(upperBound, max(lowerBound, $0)) }
  }
}

let clamped = [0, 1, 2, 3, 4, 5, 6].clamp(from: 2, to: 4))

Just got bit by this one.

Renaming “minElement” and “maxElement” to “min” and “max” was well-intentioned, but having to write Swift.min(Int, Int) is not an improvement.

extension Collection {
@inline(_always) public func max( x: T, _ y: T) -> T where T : Comparable { return Swift.max(x,y) }
@inline(_always) public func min( x: T, _ y: T) -> T where T : Comparable { return Swift.min(x,y) }
}

Seems to compile, but yuck.