How to use NSzombie in xcode?

Should a beginner use Xcode 3.2.5 or  Xcode 4?

• I am excited about developing for Mac. I joined the Mac Developer Program as well. The question is which Xcode should I use - Xcode 3.2.5 or 4?

• Answer:

  If you're starting fresh, absolutely use Xcode 4. Xcode 4 is the future, the new hotness, the way forward. Xcode 3.x, at this point, exists to let everyone in the middle of a crunch get their stuff finished before incurring the mental costs involved in learning a whole new user experience. After a reasonable weaning period, Apple is certain end-of-life it and you'll have to move to Xcode 4 anyway. Here's a boatload of tips about Xcode 4 to get you started: http://stackoverflow.com/questions/5410191/what-are-those-little-xcode-4-tips-tricks-you-wish-you-knew-about Also, if you have access to the 2010 WWDC session videos here: https://developer.apple.com/videos/wwdc/2010/ There's a lot of useful content to get you started with Xcode 4. Good luck!