New Delhi, Sept. 23 -- Apple has reportedly stopped signing iOS 18.6.2 update, preventing iPhone users who have upgraded to the recently released iOS 26 from reverting to the older software. The move follows the launch of iOS 26 just a week ago.

When Apple "signs" an iOS version, it indicates that the software has passed the company's server-side verification, a necessary step for installing updates on an iPhone. Without this verification, installation of the iOS version is blocked, ensuring that users cannot run outdated or potentially less secure software, reported MacRumors.

While Apple is not compelling users to upgrade to iOS 26, the decision to stop signing older versions effectively removes the option to downgrade for those who h...