Have you installed your Snow Leopard update today?

If you're one of the relatively small group of Mac owners still running OS X 10.6.8 Snow Leopard, you may have been surprised yesterday when an update appeared in the Mac App Store and on Apple's support website. Those of you who are new to the world of Macs might not know about Snow Leopard, which originally shipped in 2009 and introduced the Mac App Store in version 10.6.6. 

OS X 10.6.8 is not officially supported, but the update "ensures future compatibility of the Mac App Store included with OS X Snow Leopard, and is recommended for all Snow Leopard users." Only about four percent of active Mac users currently run Snow Leopard, making up as many as 3.6 million users worldwide. 

Apple would probably prefer that you update to a newer Mac that can run the most recent versions of OS X like 10.11 El Capitan and 10.10 Yosemite, but for those who are trying to stretch the life of old hardware out as long as possible and are still running Snow Leopard, it's worth running the update so that you can continue to use the Mac App Store. Believe it or not, you can still buy Snow Leopard from the online Apple Store for those really old machines you picked up at a garage sale...