The format filtered through to software names for Apple’s ecosystem-including the iPhone (iOS), iPad (iPadOS), Apple TV (tvOS), etc. Finally, the term we use today, macOS, was introduced with High Sierra in 2016.

This was followed by the use of the name OS X until 2015. The first was Mac OS X, which Apple used for version 10.7 between 20. While they may be used interchangeably, each of the macOS version names were used exclusively by Apple at some point in time. MacOS, Mac OS X, and OS X-all of these names refer to the same Mac operating system responsible for keeping you up and running. Let’s take a walk down memory lane together as we recap the macOS version history, from the first software ever released by Apple for Mac through to the latest. To clean your Mac, click on Safe Cleanup > Start Scan to find and delete any junk files on it.Click on Smart Uninstaller > Remove Selected to start removing unused apps, leftover files, plugins, and more.MacKeeper gets the job done… within moments. Together, they pave a way for the new macOS installation on your computer. MacKeeper’s Smart Uninstaller safely removes all apps and junk files, leaving nothing behind, while the Safe Cleanup tool performs a thorough sweep of your Mac to rid it of leftovers and ensure that it runs smoothly. That’s why you should enlist the help of reliable software to get the job done.

But have you ever wondered about the history of the software that keeps your Mac in working order?ĭid you know that every time you install new software, files, and apps on your Mac, they come with junk files? Those files can stay hidden and remain behind, even when you uninstall that software or app. In fact, you’re probably one of the millions of users globally who install it within no time to get access to new features. Every year, Apple releases new-and-improved macOS software.

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