Every new version of OS X comes with harsh news for owners of older Macs: "Your Mac is too old. You're stuck with your current OS. Forever." For Mac OS X Leopard in 2007, anyone who owned a Mac with a processor slower than 867 MHz was stuck with Tiger. In 2009, Snow Leopard made the biggest (and most controversial) shift yet and dropped support for all PowerPC Macs. In 2011, Lion dropped support for Macs that didn't have 64-bit Intel Core 2 Duo processors, which included most of the first-generation Intel Macs. The march of progress continues in OS X
