Currently installing Beta 1 of High Sierra for my EIGHT YEAR OLD iMac. Late 2009, Core 2 Duo, 500GB, 12GB RAM. People can complain that Apples are expensive, but this is why. They LAST. I have never had a desktop computer last this many years, much less actually still be supported here in late 2017. I fully realize it will be a very bare bones version of OSX10.13, but wow. Kudos Tim Cook.