The digital-only approach was solidified with OS X Mavericks (version 10.9) in October 2013, establishing the ‌Mac App Store‌ as the sole avenue for obtaining new macOS versions.

Mac users running macOS Mojave (10.14) and earlier versions are reporting widespread issues accessing the Mac App Store, with many unable to sign in or download previously purchased apps.

A bunch of big Mac games like "Death Stranding" and "Resident Evil Village" are discounted in the Mac App Store, with some being offered at well below half price.

If you are using an older Mac with OS X 10.5.x, you need to buy an upgrade to OS X 10.6 Snow Leopard (OS X 10.7 Lion isn’t necessary to access the Mac App Store).

You can still buy Mac OS X lion and Mac OS X Mountain Lion from the Apple store for approximately $20 each, but they've also been made available for free through Apple support documents.

Unlike previous versions of Mac OS X, Lion (OS X 10.7) doesn’t ship on a bootable disc—it’s available only as an installer app downloadable from the Mac App Store, and that installer doesn ...

Apple’s Mac operating system has undergone many sizeable changes over the years. Here’s every version in order, from the ...

So in Mac OS 9 Apple introduced Balloon Help - which was essentially an add-on way to add tool tips to Mac OS 9 apps. There was even a developer utility called BalloonWriter.