This blog post accompanies a talk I recently gave at NSLondon, you can find the slides for this talk here. There will also be a video version of this out shortly, I will post a link once it's out on my Twitter.

ARC is a very powerful feature introduced in Xcode in 4.0, along with various run-time enhancements. With the introduction of ARC, a lot has changed under the hood. The Objective-C run-time has a completely new interface for using many of the old concepts such as autorelease pools …