I’ve summarised this article for you:
Apple has now released a patch-for-the-patch, version 16.5.1 (c) for iOS and macOS 13.4.1 (c) that requires a swift reboot and takes under two minutes to install.
Apple’s official upgrade pathway doesn’t allow rolling back to the previous version, meaning users must trust the one-way upgrade to fix the critical zero-day hole.
Apple has withdrawn the update and Safari now identifies itself in web requests with a User-Agent string that includes the appendage (a) in its version number which is confusing some websites.
If you have the update, don’t remove it unless it interferes with your ability to use your phone with the websites or apps you need for work, or unless your own IT department explicitly tells you to roll back.
– Apple has now released a patch-for-the-patch to fix the critical zero-day hole
– Apple’s official upgrade pathway doesn’t allow rolling back to the previous version
– Apple has withdrawn the update and Safari now identifies itself in web requests with a User-Agent string that includes the appendage (a) in its version number
– If you have the update, don’t remove it unless it interferes with your ability to use your phone with the websites or apps you need for work, or unless your own IT department explicitly tells you to roll back