To stop signing older versions iOS se Apple it always switches a few weeks after the release of their new version in an effort to keep as many Apple users as possible on the new version of the given operating system, which is usually the most secure and has the latest news. In addition, it is an attempt to prevent the use of jailbreaks, which are usually created on older versions, whose security flaws they use for their functionality. That's why Apple users who use jailbreaks usually downgrade after updating to a newer system after releasing a jailbreak to an older version, which is exactly what they want Apple to prevent In this case, however, it is primarily about security bug fixes, which, after all, itself Apple he admitted on his developer portal. That's exactly why it's been so popular since its release iOS 17.3.1 recommends its installation to everyone – especially its latest version, which brings fixes for other annoying security bugs.
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