<Tr> <Td> Dimensions </Td> <Td_colspan="2"> 12.35 in (31.4 cm) wide × 8.62 in (21.9 cm) deep × 0.75 in (1.9 cm) high (13 ") </Td> <Td_colspan="5"> 12.35 in (31.4 cm) wide × 8.62 in (21.9 cm) deep × 0.71 in (1.8 cm) high (13 ") </Td> </Tr> <Tr> <Td_colspan="7"> 14.13 in (35.9 cm) wide × 9.73 in (24.7 cm) deep × 0.71 in (1.8 cm) high (15 ") </Td> </Tr> <P> Apple unveiled fourth generation 13 - and 15 - inch MacBook Pro models during a press event at their headquarters on October 27, 2016 . The models introduced the Touch Bar, a multi-touch enabled OLED strip built into the top of the keyboard in place of the function keys . They include a sapphire - glass covered Touch ID sensor at the right end of the Touch Bar which doubles as a power button . The models also introduce a "second - generation" butterfly mechanism keyboard that provided more travel than the first iteration implemented on the Retina MacBook . The 13 - inch model has a trackpad that is 46% larger than its predecessor while the 15 - inch model has a trackpad twice as large as the prior generation . </P> <P> All ports have been replaced with either two or four combination USB - C 3.1 ports that support Thunderbolt 3 and dual DisplayPort 1.2 signals, any of which can be used for charging . The MacBook Pro is incompatible with some older Thunderbolt 3 certified peripherals, including Intel's own reference design for Thunderbolt 3 devices . Furthermore, MacOS on MacBook Pro blocks certain classes of Thunderbolt 3 compatible devices from working by blacklisting them . Devices using HDMI, previous generation Thunderbolt, and USB will require an adapter to connect to the MacBook Pro . The models come with a 3.5 mm headphone jack, although TOSLINK functionality of older generation MacBook Pros has been removed . </P>

When was the most recent macbook pro released