[Freedom_Is_Not_Free]

I refuse to swap Mavericks for Yosemite. I have heard terrible things about Yosemite.

[minnesota_bound]

Go with Yellowstone : )

[Swordmaker]

I refuse to swap Mavericks for Yosemite. I have heard terrible things about Yosemite.

I've been using Yosemite with no problems. What problems have you been hearing about? It's at OS X.10.3 now and any issues you may have heard about have been handled.