Yep - https://www.bbc.co.uk/news/technology-62602909Seems to be a pretty important update as it fixes a couple of vulnerabilities that have been exploited, kernel - CVE-2022-32894 and webkit - CVE-2022-32893. Updated my SE earlier, all seems fine.
Apple has released an update to fix security flaws on its iPhone, iPad and Mac devices, which it says hackers may have "actively exploited".