Mac OS X Snow Leopard build 10J3250

Mac OS X Snow Leopard build 10J3250 is a special build of Mac OS X Snow Leopard 10.6.7 which shipped with the first batch of 2011 MacBook Pros. As a result, kernel-level support for Intel's Sandy Bridge CPUs was added. However, due to the unique nature of this build (as the main branch did not yet have support for these CPUs), a unique update to this version of 10.6.7 was pushed out on 4 May 2011 for these MacBook Pros as part of a firmware patch - this bumped the build number to build 10J4138.

This build was present on 2011 MacBook Pro restoration discs, and with the model locks removed, can be used as a universal install disc - many Hackintosh builds use this version as a baseline.