About Rapid Security Responses for iOS, iPadOS, and macOS

Rapid Security Responses are a new type of software release for iPhone, iPad, and Mac. They deliver important security improvements between software updates—for example, improvements đồ sộ the Safari trang web browser, the WebKit framework stack, or other critical system libraries. They may also be used đồ sộ mitigate some security issues more quickly, such as issues that might have been exploited or reported đồ sộ exist "in the wild."

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New Rapid Security Responses are delivered only for the latest versions of iOS, iPadOS, and macOS, starting with iOS 16.4.1, iPadOS 16.4.1, and macOS 13.3.1.

By mặc định, your device automatically applies Rapid Security Responses. If necessary, you'll be prompted đồ sộ restart your device. To kiểm tra your device settings:

iPhone or iPad: Go đồ sộ Settings > General > Software Update > Automatic Updates, then make sure that "Security Responses & System Files" is turned on.
Mac: Choose Apple thực đơn  > System Settings. Click General in the sidebar, then click Software Update on the right. Click the Show Detail button next đồ sộ Automatic Updates, then make sure that "Install Security Responses and system files" is turned on.

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When a Rapid Security Response has been applied, a letter appears after the software version number, as in this example: macOS 13.3.1 (a).

If you choose đồ sộ turn off this setting or not đồ sộ apply Rapid Security Responses when they’re available, your device will receive relevant fixes or mitigations when they’re included in a subsequent software update.

More details about a specific Rapid Security Response are available in the Apple security releases article.

Published Date: August 31, 2023