![]() For example, Sierra has a fatal bug in its scheduling system (DAS/CTS) which means that Macs stop making automatic Time Machine backups after a few days of continuous running. The only general exception to that is when a bug is also a security vulnerability, and gets fixed in a Security Update. It’s also worth remembering that Apple very rarely fixes bugs in older releases of macOS. That means that all the bugs in those parts of macOS have gone for good. An extreme example is Catalina, which no longer contains all the frameworks and other software to support 32-bit apps. In some cases, they may simply be fixes, but in others they occur when Apple completely rewrites or replaces part of macOS. If that were true, wouldn’t it be better sticking with an older release with fewer bugs? There’s an obvious fallacy here in that this ignores the bugs which are fixed in a new release. Some like to point out that each new major, and many minor, version of macOS contains bugs, so the total number of bugs increases with each new release. For many, that may not include Catalina, because of its substantial architectural changes including the loss of 32-bit software support. Although it’s an unwritten rule that Apple only provides security updates for its current and last two major releases of macOS, you can be fairly certain that all remaining vulnerabilities in Sierra will now be left unpatched.Īs a general principle, you should run the most recent release of macOS that you can, without compromising what you do with your Mac. If you’re still running Sierra 10.12.6, your last Security Update was in late September last year, nearly six months ago. In the next few weeks, Apple is likely to ship Catalina 10.15.4, which takes it a step closer to its end-point of 10.15.6 in the summer, and whatever 10.16 might bring later in the year. Some applications may need to run with System Integrity Protection disabled.Now is a good time to re-evaluate which version of macOS your Macs are running. Security Update 2018-005 was released October 30, 2018. Safari 12.0.1 was released on October 31st for both Sierra and High Sierra through the App Store. New USB serial drivers for Sierra have been made available by third party here: Sierra supports new RAW formats for digital photography:ĭigital camera RAW formats supported by iOS 10 and macOS Sierra - Apple Support And as with any install should be preceded with a backup using the aforementioned backup directions. These requirements are the same for High Sierra, the operating system that succeeded Sierra.Īpple has printer support on this knowledgebase article. Here are the new requirements with the Machine ID (x,x) as stated in the System Profiler for Mac OS 10.12 Sierra. Backup (link explains how) your data before you install anything.Īpple had kept the same minimum hardware requirements for Mac OS X 10.8 through 10.11. Note, download times may be longer than usual on first release. Some reports may predate the Septemdate, and should be verified with the software publisher. ![]() Which 10.6 Macs can install Mac OS Sierra through Mojave (10.12-10.14)Īs always, is an excellent third party resource to find and contribute compatibility of Mac Software. See this tip to find out if your Mac can install Sierra from a system as old as 10.6: Not all 10.6.8 compatible Macs are compatible with 10.11 either. Apple has provided an update to 10.11 for these Macs while leaving 10.10 and 10.9 off the App Store as discussed here. Some Macs may not be able to take Sierra, but can take 10.11 and came with 10.6.8 or earlier. Any version of 10.7 can be upgraded in this sequence before installing newer operating systems if the hardware is supported: Sierra can be upgraded from 10.7.5 directly if all its associated updates have been installed. ![]() The only exception is that High Sierra needs a minimum of 10.8 installed, and will reformat SSD and and Flash drives to APFS rendering it invisible to Sierra and older systems. ![]() High Sierra is also still available as of September 30, 2018. Macs that shipped with Sierra can be updated directly to Mojave from the Mac App Store. Note, it no longer has 'X' in the official name. The official release date of Sierra was September 20, 2016. ![]() This is a mirror of the original link on which is no longer being maintained. ![]()
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