Many of the Macs on which Catalina is supported have firmware updates, which are checked correctly by SilentKnight and listed in this article. This continues the series of security updates, and is available through Software Update, or as a standalone installer package from here.Īpple’s list of security fixes included in this update is here, and includes vulnerabilities in AppleScript, zsh, and two kernel bugs. Most if not all Macs on which Big Sur is supported have firmware updates, which are checked correctly by SilentKnight and listed in this article. a full installer, which is listed by Mr Macintosh and others.Īpple’s list of security fixes included in this update is here, and includes vulnerabilities in AppleScript, iCloud, zsh, and two kernel bugs.an update available through Software Update. It therefore contains no other significant bug fixes. This is the second security update for Big Sur, now that it has entered the first of its two years of security maintenance only. There is also an accompanying Rosetta 2 update for M1 models. This may not appear in Software Update, but is easily obtained through SilentKnight or LockRattler. There’s no standalone updater, following the pattern established in Big Sur.Īpple’s list of security fixes included in Monterey 12.0.1 is here, and includes more than 35 items, with several vulnerabilities in WebKit and three kernel bugs.Īfter upgrading or updating to 12.0.1, your Mac should also receive an update to Core Services Application Configuration Data, which is tiny at 24 KB. a full installer, which is readily obtained from the App Store, then delivered through Software Update.an update from 12.0 for new MacBook Pro models, available through Software Update.Monterey 12.0.1 comes in two basic installers: This article gives a detailed breakdown if you’re unsure as to what your Mac should be able to use. Not all of Monterey’s many features are available on all supported Macs. These are now checked correctly by SilentKnight, and listed in this article. Now, when the System has been installed, its integrity is checked and validated thoroughly by the hashes which build up to the Seal at the top – and that has to match the hash set by Apple for that version of macOS, or your Mac won’t boot from it.Īll Macs on which Monterey is supported have firmware updates. Before Big Sur introduced the Sealed System Volume, it was easy for parts of the new system to have minor errors which could make a clean re-install a useful tool. This is because every bootable installation of Monterey (and Big Sur) is perfect throughout its System volume. One trick which is of little use now is performing a clean re-install. Further suggestions are given in this article. If that doesn’t clear the problem, then try starting up in Safe Mode, leaving your Mac a couple of minutes, then starting back in regular mode. If you do experience any problems, the first thing to do is restart your Mac. What you never hear about are the vast majority which complete without glitch or hitch. There are inevitably plenty of horror stories already about upgrades that went badly wrong. If it does, then follow the instructions he provides for dealing with this issue before you try to upgrade. In Terminal to check whether that returns a number greater than about 20,000. Sudo find /private/var/folders/*/*/C/ -type d | wc -l Mr Macintosh has full details of how to deal with this, and the quick test he recommends is running In some rare circumstances (presumably a bug in the older macOS) exceedingly large numbers of files in one of the working directories in /private/var/folders could cause the upgrade to fail completely. There is, though, one warning of a potential problem when upgrading to Big Sur or Monterey from High Sierra, Mojave or Catalina. However, I still believe that if you can break free from 32-bit apps and Mojave (or earlier), the new Sealed System Volume and other structural features in Monterey are well worth the effort of upgrading. Upgrading from earlier versions of macOS will inevitably be more traumatic, and there’s a greater risk of things going wrong. Many of those bug fixes are included in Monterey, as are all the latest security updates. Big Sur hasn’t had any non-security bug fixes since 11.5.2, which was released on 11 August, over two months ago. If your Mac is currently running Big Sur, then I strongly recommend that you upgrade to Monterey soon. It fixes several significant issues in the otherwise-unreleased Monterey 12.0 which comes pre-installed on the first shipments of these new Macs. If you’ve just got one of the new M1 Pro or M1 Max MacBook Pros, Apple strongly recommends that you install this update as soon as possible. If you haven’t yet installed any of the updates and upgrades released by Apple on 25 October 2021, here’s a quick summary and some matters arising.
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