[BBB] TI SDK7 and linux 3.12 on github, any difference?

Hi all,

TI has released the AM335XSDK7 http://software-dl.ti.com/sitara_linux/esd/AM335xSDK/latest/index_FDS.html recently, which ships the Linux 3.12 kernel. Can someone sum up the difference between the “offical” version of Linux 3.12 and the github version (https://github.com/beagleboard/kernel/tree/3.12) of Linux 3.12?