update mavericks to high sierra
I want to upgrade my MacBook Pro (Retina 2014) running Mavericks OS to High Sierra. I understand I must first update to Yosemite, but I do not see it as available at this time. I have a lot of business data backed up on an external Drive via Time Machine so I want to be sure to do this properly in order to transfer it over to my machine after installing High Sierra.
MacBook Pro (Retina, 15-inch, Mid 2014), OS X Mavericks (10.9.5), iTunes 12.6.2.20