Apple is separating the new smartphones into its usual low-cost versus high-cost categories, with big differences between the two models coming down to the camera, display, and battery life.
iOS 13 & watchOS 6 Now Available
Apple Releases iPhone OS 4.1 Beta 2 to Developers
Apple has released the second beta for iPhone OS 4.1 to developers. The first beta was released two weeks ago and introduced some minor new features. Today's beta seems to only add minor bug fixes into the mix without any notable other features.
The iPhone 4 proximity sensor issue does not appear to be fixed in this latest beta. Apple has said the proximity sensor will be addressed in a future software update.