MacBooks from late 2008 (aluminum case) and early 2009 (plastic case) forward MacBook Pro notebooks from mid-2009 and later (13-in.) and late-2007 and after (15-in., discontinued 17-in.) and on MacBook Air laptops from late 2008 and later Mac Mini desktops from mid 2009 and after and the much beefier Mac Pro desktops from early 2008 and forward. OS X 10.11 will run on iMacs from the mid-2007 model on on 13-in. El Cap will run on the same Macs as now run 2014's Yosemite, 2013's Mavericks, 2012's Mountain Lion and 2011's Lion, according to reports of the newest OS X's system requirements, which have been confirmed by Computerworld with developers, who asked for anonymity.
