So ARC is baked directly into the core of Swift and I'd imagine we're all pretty happy with that? I know that as an iOS developer I certainly am. But Swift is not just for writing iOS and macOS apps, it's also designed as a systems language and that can require much closer control of memory management. So let's talk memory and ownership in Swift 4 with this manifesto. It's also worth reading this set of notes from Alexis Beingessner as well.
Twitter went a little crazy for this library earlier in the week, and I must admit I can't really see why! 🤷♂️ Windowing on iOS has been done before, although admittedly not in anywhere near such a polished way. But, before you go too crazy with apps that work like this, stop for a second and think whether this is really a good idea.
Even though swipe-able cells form a key part of the Mail.app UI, there's no standard for creating them in UIKit right now. Don't worry though because Jeremy Koch has put together this comprehensive library for making it trivial to add this kind of table cell into your app. There's plenty of options for customisation too. Looks good.
This looks to be an extremely comprehensive photo/video capture library written in Swift 3. At its core it looks to be a customisable capture API but there's so much more to it than that (see the documentation). What are you waiting for? Go and build the next Vine or Snapchat. 👓