Watch out for major upgrades and minor updates and install them ASAP.
I received an email from a reader this week about a recent malware column.
“I read your article from two weeks ago about installing Malware Bytes on my four-year-old iMac, but when I tried to install it, I got a message stating I needed MacOS version 10.15 or higher. My version is 10.11.6 and there were no updates available. Am I doing something wrong?”
The reader isn’t doing anything wrong, but there is a misunderstanding about system updates, especially on the Macintosh.
If you notice, the reader’s iMac is running Mac operating system version 10.11.6.
Mac OS 10 came out originally in 2001.
The second number in the OS version scheme is the major upgrades, which are usually released yearly in late summer or early fall.
The third number is the minor updates, and they are released fairly often.
Pay attention to the difference in wording — upgrades are major and happen once per year, while updates are released as needed during the year.
Apple may release six or more minor updates before the next major upgrade.