Apple has officially stopped signing iOS 18.4 just over a week following the release of iOS 18.4.1. This means users who have upgraded to iOS 18.4.1 will no longer have the option to revert back to iOS 18.4.
Why Apple Stops Signing Older Versions
It is a common practice for Apple to cease signing previous iOS versions after a new update is rolled out. This server-side verification process ensures that only the newest and most secure versions of iOS can be installed on devices, protecting users from potential vulnerabilities found in outdated software. By preventing downgrades, Apple ensures that iPhone users benefit from the latest security improvements and remain protected against known security threats.
New Security and Feature Enhancements
The iOS 18.4.1 update significantly improves user security, addressing issues within wireless CarPlay and patching multiple security vulnerabilities, including one that was actively exploited by attackers. Users are encouraged to install iOS 18.4.1 to maintain optimal security levels on their devices.
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