Which version of iOS?

[Bear Bibeault]

As iOS 5 is imminent, is it safe to assume that the focus of the book is on iOS 4? The book description doesn't specify.

[Johannes Fahrenkrug]

Yes, it was written based on iOS 4. Since Apple imposes an NDA, we wouldn't even be allowed to write about iOS 5 specific stuff.

Just about everything that's covered in the book is the same in iOS 5, though. The book focuses on the language Objective-C, and that language will not change from iOS 4 to 5, except for a few additions for ARC (automated reference counting).

It won't be outdated and obsolete once iOS 5 is released.

- Johannes

[Fei Ng]

And when you are done with the book you can head over to https://developer.apple.com/videos/wwdc/2011/ for iOS5 new features.

[Bear Bibeault]

Johannes Fahrenkrug wrote:It won't be outdated and obsolete once iOS 5 is released.

Good to know. As I had pointed out in another topic, staying ahead of the curve while writing a book is quite the challenge!