Bundle Version and Bundle Build in XCode 4

The SO question that helped me most yesterday was:

http://stackoverflow.com/questions/7281085/whats-the-difference-between-version-number-in-itunes-connect-bundle-versio

Apple has a lot of information too, of course:

http://developer.apple.com/library/mac/#documentation/General/Reference/InfoPlistKeyReference/Articles/CoreFoundationKeys.html#

They all refer to the version of your application.

• iTunes Connect
  This is the version number shown in the App Store; This must be a pure version number like1.2.3
• Bundle Version (CFBundleVersion)
  This doesn't need to be a pure version number. This can be something like 12345 or 1.2.3 (Build 12345AB). This is shown in the About window for Mac OS X apps for example and is often more a "Build Number" than a "Version Number".
• Bundle Version String (CFBundleShortVersionString) This value is used as the "real" version number. This must be the same string as used for the version in iTunes Connect.