Sam Burnstone with a series of posts that have been in the works since just after WWDC! Ten features of iOS 10 and ten posts exploring them. They cover speech and SiriKit, Messages, Notifications, the thread sanitiser and much more. 👍
WebKit is updated all the time, but it's rare that we get any changes to the interface between it and our apps. Peek and Pop was introduced into WKWebView with iOS 9 but these new APIs in iOS 10 allow much more customisation of what happens when you peek, or pop!
Super simple form validation based on regular expressions. Displaying the errors is still your responsibility (as it should be) but this looks like a great solution to a common problem from Shagun Madhikarmi and Aaron McTavish.
Timers are easy, but the API isn't quite as smooth as it could be. I liked this small library from Luca D'Alberti which gives a much more usable interface on NSTimer.