I'm not against 3rd party libraries at all, I use them every day. However, I do exercise plenty of caution before adding a new one to a project. This is a great checklist you should go through before adding that extra line to your Podfile.
Airspeed Velocity with an investigation into the performance of map/reduce in Swift. Maybe the lowly for loop isn't dead after all. 😃
Interesting project from Facebook for splitting content into several different layers which can be positioned independently. I see this being used mainly for things like fancy transitions but I bet there are some more subtle uses as well. Worth checking out and doing a little experimentation with.
Remember XML? 😃 You might occasionally still come across a situation where you need to parse some. Actually, it's more likely that you'll need to consume the odd bit of HTML these days rather than XML. Luckily, this new library by Honghao Zhang does both and looked pretty good to me.