Shortly before the release of macOS Sierra this fall, Apple will ship the final security update for 2013's Mavericks, patching only Yosemite, El Capitan and Sierra going forward. The out-of-support versions accounted for about 12% of all Macs last month, according to analytics vendor Net Applications. They pointed out what they believed were inconsistencies, such as 2009 MacBooks making the list while MacBook Pros - which sported more powerful components - from that same year were omitted.Īpple has already halted security update support for Macs still running any edition of OS X older than Mavericks. Others saw a conspiracy in the move, arguing that Apple is simply dumping models to force customers to buy new hardware. company did not offer a reason for the restriction to newer Macs, but online commenters speculated about everything from the firmware and disk drive to the processor and graphics chipset. 2011's OS X Lion, 2012's Mountain Lion, 2013's Mavericks, 2014's Yosemite and last year's El Capitan ran on the same set of systems: iMacs from mid-2007 on MacBooks as old as late 2008, MacBook Pros from as long ago as late 2007 MacBook Airs from late 2008 Mac Minis from mid-2009 and Mac Pro desktops from early 2008 and later.Īpple dropped support for all Mac models that debuted in 20, as well as the heart of its notebook line - MacBook Airs and MacBook Pros - launched in 2009. Sierra's support was narrower than the five previous iterations of OS X, the former name of the Mac's operating system.