iOS App Release versions and Dev versions on same phone

Question

I have an app live on the App Store, and I'm working on a second release.

Installing a new version from Xcode would overwrite the release version on the phone - which I'd like to avoid. What's the best practice for maintaining two copies (release and dev) version of an iOS / OS X app on a device?

Obviously, you could manually change the bundle identifier, but that has other negative consequences.

EDIT:

There's this: http://blog.chrismiles.info/2011/04/ios-dev-beta-production-builds.html but it's quite out of date.

Answer 1

Typically I would recommend two bundle IDs: one for internal/beta/development use and one for production use in the App Store.

In a more complex case you could split development and beta to give you a total of 3 separate IDs.

When it comes time to test version upgrade scenarios you'll have to switch to the production bundle ID for final testing and release candidates.

Simon Wolf has a pretty good write up of the approach: Concurrent Debug, Beta and App Store Builds.