“When Apple launches a new version of one of its OSes, say, macOS Sierra, the first thing users think about is the features,” John Martellaro writes for The Mac Observer. ” If they’re a bit more methodical, they’ll look at their mission critical apps and monitor for updates from those associated developers. But, above all, a decision to not upgrade (or do it soon) must be balanced against the security updates folded into the new version.”

“The feature list of macOS Sierra is deceptively simple. It is so modest in its scope that some users may be seduced into thinking that they may not need the upgrade, even though it’s free,” Martellaro writes. “That’s a bad idea.”

Martellaro writes, “If you’ve been thinking that you can continue to survive with, say, a 2007 iMac running Mountain Lion, I’d advise against it if that Mac is connected to the Internet.”

Read more in the full article here.

MacDailyNews Take: Good advice. If your hardware can upgrade and your apps are ready, you should make sure you’re running the latest version of OS X/macOS possible.

All of our Macs, mission critical and otherwise, are running macOS 10.12 (build 16A323).