Scared to update to 10.3

[jancy]

Now that I've had Yosemite running like a champ for a week now I'm scared as hell to update and break things.

Any suggestions to make it smooth? I do have an nvidia card if that matters

 

[defbref]

Keep reading this thread, and you will see who succeds and who fails:

http://www.tonymacx86.com/os-x-updates/161314-os-x-10-10-3-update.html