I have a Mid-2009 MacBook Pro currently running Yosemite OS X 10.10.5. I've had to replace my printer and got a Brother MFC-J497 DW, which Prints, Scans and Faxes and, according to the manual requires a newer version OS System to accomplis it's abilities...but I have no idea what OS Version will be compatible with my MacBook Pro! I will appreciate ANY and ALL advice from my Forum sisters and brothers. Thanks!