My wife's mid-2010 iMac is currently on Yosemite. She's overdue for an upgrade, obviously. She has the requisite 8GB ram and SSD. Is it OK to skip over El Capitan, and install Sierra directly on top of Yosemite? I wasn't planning to do a clean install, though I am willing to listen to arguments in favor of it. Thanks for your thoughts.
Kurt
Kurt