Hi, I am currently running 10.10.3 on my following machine. AMD FX8120 GA 970A-DS3 8GB DDR3 Gigabyte 7850 2GB The system is running well. Now i need update XCode to 6.4 as I work on iOS so I need to update system to 10.10.5. Can you guide me which kernel to use and what all kexts are required and where to get them. Thanks a lot.