![]() ![]() After sixteen distinct versions of macOS 10, macOS Big Sur was presented as version 11 in 2020, and macOS Monterey was presented as version 12 in 2021. Apple shortened the name to "OS X" in 2012 and then changed it to "macOS" in 2016 to align with the branding of Apple's other operating systems, iOS, watchOS, and tvOS. Ī prominent part of macOS's original brand identity was the use of Roman numeral X, pronounced "ten" as in Mac OS X and also the iPhone X, as well as code naming each release after species of big cats, or places within California. Apple's mobile operating system, iOS, has been considered a variant of macOS. All releases from Mac OS X 10.5 Leopard and after are UNIX 03 certified, with an exception for OS X 10.7 Lion. The first desktop version, Mac OS X 10.0, was released in March 2001, with its first update, 10.1, arriving later that year. During this time, Apple cofounder Steve Jobs had left Apple and started another company, NeXT, developing the NeXTSTEP platform that would later be acquired by Apple to form the basis of macOS. MacOS succeeded the classic Mac OS, a Macintosh operating system with nine releases from 1984 to 1999. Within the market of desktop and laptop computers it is the second most widely used desktop OS, after Microsoft Windows and ahead of Chrome OS. It is the primary operating system for Apple's Mac computers. This may require hardware upgrades.MacOS ( / ˌ m æ k oʊ ˈ ɛ s/ previously Mac OS X and later OS X) is a proprietary graphical operating system developed and marketed by Apple Inc. You might consider upgrading to a Nvme SSD.įinally, upgrade to Mojave. If you are using a HDD then you may discover the Mac will run much slower than High Sierra without APFS. Upgrading to Mojave will require using APFS. I should first point out Tetsujin has a more extensive answer to the question How can I download an older version of OS X/macOS?Īlthough upgrading from a USB flash drive installer may be optional, I will include this Apple article on how to do so. This Apple article explains how to download older versions of OS X and macOS. The upgrade to High Sierra will also upgrade the firmware so your Mac can boot from APFS.Īccording to this Apple article, you can upgrade to El Capitan (10.11.X) from Lion (10.7.X). You will also probably need to upgrade your graphics card.Īccording to this Apple article to need to first be running at least Mountain Lion (10.8.X), before upgrading to High Sierra. ![]() However, according to this Apple article, you need to first be running at least High Sierra (10.13.6). ![]() ![]() According to, the latest version of macOS for your Mac is Mojave (10.14.X). ![]()
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