<P> At Apple 's Worldwide Developers Conference ( WWDC ) on June 8 , 2009 , it was announced that the 13 - inch unibody MacBook would be upgraded and re-branded as a MacBook Pro , leaving only the white polycarbonate MacBook in the MacBook line . It was also announced that the entire MacBook Pro line would use the non user - removable battery first introduced in the 17 - inch MacBook Pro . The updated MacBook Pro 13 - and the 15 - inch would each have up to a claimed seven hours of battery life , while the 17 - inch would keep its eight - hour capacity . Some sources even reported up to eight hours of battery life for the 13 - and 15 - inch MacBook Pros during casual use , while others reported around six hours . Like the 17 - inch MacBook Pro , Apple claims that they will last around 1,000 charge cycles while still containing 80 percent of their capacity . Graphics card options stayed the same from the previous release , although the 13 - inch and the base model 15 - inch , came with only the GeForce 9400M GPU . The screens were also improved , gaining a claimed 60 percent greater color gamut . All of these mid 2009 models also included a FireWire 800 port and all except the 17 - inch models would receive an SD card slot . The 17 - inch model would retain its ExpressCard / 34 slot . For the 13 - inch MacBook Pro , the Kensington lock slot was moved to the right side of the chassis . In August 2009 , Apple extended the `` matte '' anti-glare display option to the 15 - inch MacBook Pro . </P>
when did macbook pro 13 inch come out
June 8 , 2009