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The Apple Support Community will permanently close on November 20, 2026. Starting today, the site will no longer accept new posts and is available in a read-only state.
You can continue to find trusted guidance and support on the official Apple Support site.
We want to thank the community members who have contributed their time and expertise to help others with their Apple products.
What is the security response update responding to? What ignited this to happen?
iPhone SE, iOS 16
You can read it here, it is responding to an issue in webkit
You can read it here, it is responding to an issue in webkit
If you read the bottom of the page it clearly says that (c) includes the content of (a).
Rapid Security Responses iOS 16.5.1 (c) and iPadOS 16.5.1 (c) include the security content of Rapid Security Responses iOS 16.5.1 (a) and iPadOS 16.5.1 (a) and fix an issue that prevents some websites from displaying properly.
Is the WebKit for both versions? It’s only listed for “a”.
iOS Security Response 16.5.1 (c)
