Apple has just released updates to Monterey and Big Sur, bringing them to 12.2 and 11.6.3 respectively, and Security Update 2022-001 for Catalina too. Although slightly slow to appear on the update servers in some parts of the world, they should now be generally available.
The update to Monterey 12.2 is around 2.75 GB for M1 Macs, and 2.4 GB for Intel models. Your mileage may vary, as might the size shown during the download itself.
Of the three, Apple only supplies a standalone installer package for the Catalina Security Update, which is now available from here. If Software Update can’t deliver the update to 12.2 or 11.6.3, the only alternative is to download the full installer, for example from the App Store/
Details of security fixes in macOS 12.2 are given here. They include one kernel vulnerability, and total 13. The list for macOS 11.6.3 includes seven vulnerabilities, one of which affects TCC. For Catalina there are just five.
These updates bring firmware updates for most recent models. T2 firmware is updated to 1722.214.171.124.0 (iBridge: 19.16.10744.0.0,0), and for M1 Macs iBoot goes to 7429.81.3. I have now updated the data used by SilentKnight, and the pages of firmware versions here, to reflect these changes.
There’s one big disappointment: initial testing demonstrates that 12.2 doesn’t stop the memory leak in the Finder’s Find feature. Nor does is address the missing charge information when recharging Bluetooth peripherals.
I will post full details on what has been updated later tonight.
Last updated 29 January 2022.