I noticed a change in the behavior in the "Passcode Lock" setting... All settings are now grouped and are only displayed after tapping on "Passcode Lock" and entering your Passcode. Previously, some settings such as "Require Passcode..." after a certain time interval could be changed without reinputting the Passcode. Let's say that you had the interval set to "After 5 minutes". If your phone was not locked, someone could change the interval to "After 4 hours without knowing the Passcode. I think that this is an improvement. I would have liked to see a "Never" choice for the interval, so that you could have an active Passcode without the iPhone ever requiring that the code be entered to unlock it. In order for that to happen, you need to turn the "Passcode Off." However, that would allow somebody to pick up your phone and set a Passcode that you didn't know. Yes, that may be unlikely, but I don't like the idea of leaving the phone without one. Therefore, I keep mine set to "Require Passcode After 4 hours, which is not too inconvenient.