when was the latest macbook pro retina released
MacBook Pro Apple released the third generation of MacBook Pro with a 15-inch screen during WWDC 2012 and discontinued the 17-inch variant. The previous generation 13- and 15-inch unibody models continued to sell with updated processors. The third generation model was a quarter thinner than its predecessor and introduced the Retina Display with a much higher screen resolution. A 13-inch variant was released in October 2012.
MacBook Pro The macOS operating system has been pre-installed on all MacBook Pros since release, starting with version 10.4.4 (Tiger).[4] Along with OS X, iLife has also shipped with all systems, beginning with iLife '06.[4]