iOS 16.4.1 and iPadOS 16.4.1 are now out with fixes for actively exploited vulnerabilities
Today Apple has released iOS 16.4.1 and iPadOS 16.4.1 to the public, and your iPhone or iPad may have already notified you about the availability, as Apple pushes such updates to everyone at the same time. You should probably install the update as soon as possible, as it comes with fixes for a couple of actively exploited vulnerabilities.
The IOSurfaceAccelerator vulnerability allowed an app to execute arbitrary code with kernel privileges, while the WebKit vulnerability could let maliciously crafted web content to execute code.
Additionally, the release fixes an issue that caused Siri not to respond in some cases, and adds skin tone variations for the pushing hands emoji.
This definitely isn't the biggest of updates out there, but it's important to get anyway so that you aren't exposed to any of the aforementioned vulnerabilities.