The 2011 models mostly came with 10.6.6 or 10.6.7 on the special version DVDs.

It won't boot to Apple's commercial Snow Leopard DVD natively, as Apple stopped at 10.6.3 for that DVD. Keep in mind that the Early 2011 came with a special version of Snow Leopard, so if you get that MBPro after it has been upgraded, it's tricky to install Snow Leopard unless you have the original restore DVD that shipped with it. Really, your best choice is that Early 2011 MBPro, as mentioned by tubeexperience. Neither one can do Snow Leopard natively, although adjusting some kexts, it would likely work - but no guarantee about the software that you want to use, either The 13-inch (pre-retina) 2012 is still being sold as new by Apple. The Macbookpro 9,1 is the last non-retina 15-inch (2012), and the last one with upgradeable RAM and a standard 2.5 drive that can have that hard drive-style SSD (rather than the later blade type.) The Retina models start off with 10,1 - and do not have owner upgradeable RAM. Insert the Mac OS 10.6 installation DVD When the DVD is mounted, select Optional Installs then Optional Installs.mpkgFollow the onscreen instructions for agreeing to the software license and selecting the hard drive for installation.In the Installation Type step, select the box next to Rosetta from the list of applications presented. Whilst demonstrating the software at its WWDC earlier this year, Apple referred to the rival Windows 7 operating system from Microsoft as the 'same old tech as Vista', whilst claiming that Snow Leopard is 'the world's most advanced operating system'.There is no MacbookPro(retina)9,1. According to the listing, Apple's operating system refresh will land on August 28th - seven days from now.Īpple hasn't officially commented on the supposed slip, but it appears the software could become available sooner than the original September timeframe, albeit by a matter of days. The company had previously stated that Snow Leopard would become available to Mac OS X customers sometime this September at an upgrade cost of just $29 for a single user license, and $49 for a five-user family pack, but a brief listing on the UK Apple Store earlier today suggests otherwise. Snow Leopard, back at its Worldwide Developers Conference (WWDC) in June, but has since remained reluctant in providing a specific launch date.

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