title: Short of jailbreaking, does a UDID ever change on an iDevice?
body: <p>I have a beta tester to whom, 4 months after the last beta test cycle, I sent a new versions' first beta test of an app.  When she said that it wouldn't load, we checked her UDID, and it is different than what we used 4 months ago, so my provisioning clearly didn't work.  </p>
  
  <p>She says it's the same device used before.</p>
  
  <p>I've yet to further explore what upgrades she might have done or if she (or maybe her child?) has jail-broken it.</p>
  
  <p>Are there any Apple sanctioned actions that would change the UDID on a device?</p>
  
  <p>If you jail break a device, do you need to take further action (e.g., install something with code like UDIDFaker) for the UDID to change?</p>
  
  <p>Thanks!<br>
  Henry</p>