Apple’s next big cat spent the longest time on the prowl of any Mac OS X release to date. Tiger spent about two and a half years on the market and spanned the Mac’s transition from PowerPC to Intel ...

Lion represented a major step forward, installing via download rather than DVDs, dropping all support for PowerPC software, and implementing interface elements popularized on iPads and iPhones. With ...

At its developers conference Monday, Apple unveiled a near final version of Mac OS X Leopard, the sixth major release of what the company calls the "world’s most advanced operating system." ...

Continuing to refine its recently-released Mac OS X 10.5 Leopard operating system at a rapid pace, Mac maker Apple Inc. will soon begin testing the first pre-release builds of Mac OS X 10.5.2 Update, ...

"The response to Tiger is off the charts," crowed Jobs in a statement. Mac OS 10.4, as Tiger is officially called, released to fanfare at the end of April, but the next iteration, presumably 10.5, won ...

Apple Inc.’s late-October launch of Leopard generated the best first-month results for an operating system upgrade in the company’s history, a market research firm said today. Just days before Leopard ...