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 Apple routinely stops signing older iOS releases over time in order to prevent users from downgrading to an outdated software version.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
Starting today, the seven new Apple products that were announced last week are available at Apple Stores and beginning to arrive to customers.
The colorful MacBook Neo and all of the other new products are on display at most Apple Store locations around the world starting today. Apple Stores have inventory of the new products for both walk-in customers and Apple Store pickup, but...
Apple is continuing to test the iOS 26.4 beta, and the latest update is now available for developers and public beta testers. As testing goes on, there are fewer new features in each beta, but today’s release adds new emoji characters and a few other changes.
New Emoji
Apple added new emoji characters, including trombone, treasure chest, distorted face, hairy creature, fight cloud, orca,...
Apple today announced that it will celebrate the company's 50th anniversary over the coming weeks, but it has yet to reveal any specific plans.
Apple was founded on April 1, 1976, so the company will turn 50 on April 1, 2026.
"While Apple is known for looking forward, this milestone offers a special moment to reflect on the journey that has brought the company here, to celebrate the...