I just successfully updated my Xcode tool to 5.1 version and when I check Downloads option in preference section then I noticed there is no option to download ios 6.0 simulator.(Please check attached image)
So how can I access ios 6.0 simulator in Xcode 5.1?
chandan
Please follow this procedure to upgrade your xCode
At last change deployment target to access both IOS 6 and IOS 7 simulators.
There are basically no difference between IOS 6.0 and IOS 6.1, in 6.1 apple just added three header file with few method in MapKit framework and did little modification in UIKit. So I don't think that you should bother about that.
来源：https://stackoverflow.com/questions/22342092/ios-6-0-simulator-in-xcode-5-1