Apple regularly stops signing older version(s) of iOS and iPadOS as the company releases newer versions to the general public. Doing so works as a mechanism to prevent firmware downgrades.
Apple regularly stops signing older version(s) of iOS and iPadOS as the company releases newer versions to the general public. Doing so works as a mechanism to prevent firmware downgrades.
Apple on Tuesday released iOS & iPadOS 17.1.1 (build 21B91) to the general public, a small yet important software update for iPhones and iPads up from version 17.1 that introduces important bug fixes for those platforms.