Yosemite DownloadIphoto Mac Os Yosemite DownloadMac YosemiteInstall Iphoto On MacApple Iphoto For MacCheck compatibilityYou can upgrade to OS Yosemite on any of the following Mac models. Your Mac also needs at least 2GB of memory and 8GB of available storage space.My brother gave me his old mac computer. I just updated the mac to Yosemite. My system wants me to upgrade iphoto but shows his login..