Apple Stops Signing iOS 16.3.1 to Prevent Downgrading
Following the release of iOS 16.4.1 today, Apple has stopped signing iOS 16.3.1, preventing iPhone users from downgrading to that software version. iOS 16.4, iOS 16.4.1, and the iOS 16.5 beta remain signed at the time of writing.

iOS 16.3.1 was released on February 13 and was a minor update with bug fixes, security improvements, and additional Crash Detection optimizations for iPhone 14 models. Apple routinely stops signing older iOS releases over time in order to prevent users from downgrading to an outdated software version.
iOS 16.4 will likely be unsigned later this month, so iPhone users who wish to downgrade to that version have limited time remaining to do so.
Popular Stories
When the iPhone Duo launched, we shared a list of some of the fun apps developers created for the new form factor. Two weeks out, developers are continuing to come up with fresh ideas, so we thought we'd share some of our favorites.
Games
Marbles Unhinged ($2.99) - Marbles Unhinged is a marble maze designed for the Duo. When you fold it, the floor turns into a ramp. If you stand the top...
Apple is launching five new products on Friday, November 6, following pre-orders that opened last week, including its first touchscreen MacBook Pro models.
The following new products will be available from today:
iPad mini with OLED display and A20 Pro chip
iMac with M6 chip
14-inch MacBook Pro with M6 chip
14-inch MacBook Pro with OLED touchscreen
16-inch MacBook Pro with OLED...
Apple has made a change to its development process for iOS 28, macOS 28, and corresponding software updates, according to Bloomberg's Mark Gurman.
In his Power On newsletter today, he said Apple separates development of each year's new operating systems into three major stages. Typically, he said each stage consists of four weeks of coding followed by a four-week "convergence" period where...