Immediately after updating to macOS Sierra, the Mac must re-index the drive for use with Spotlight and Siri, the built-in search functions in Mac OS. This can take quite a while to complete, particularly if you have a large hard drive with a ton of files.
![Needed Needed](http://cdn.osxdaily.com/wp-content/uploads/2017/06/check-what-model-mac-year-compatible-high-sierra-610x374.jpg)
Apple have released a developer beta of their upcoming operating system named macOS High Sierra, which will be macOS 10.13. The name High Sierra continues on with their California landmarks with the name after a scenic CA region, it should be publicly available between September to November. Lucklily for most the new macOS High Sierra 10.13 will run on the same machines as its predecessor macOS Sierra 10.12.
Apple had already dropped support for any models pre late 2009 for MacBook and iMac. And anything pre 2010 for MacBook Air, MacBook Pro, Mac Mini and Mac Pro. You’ll still require a 64bit Intel processor, 8GBs of free disk space – if upgrading, as appose to clean install min plus at least 2GB of RAM. The Macs that will run macOS Sierra. iMac – all models from late 2009, iMac 10,1 – 17,1.
MacBook & MacBook Retina – all models from late 2009, MacBook 6,1 – 9,1. MacBook Pro – all models from 2010, MacBook Pro 7,1 – 11,5. MacBookAir – all models from 2010, MacBook Air 3,1 – 7,2. Mac Mini – all models from 2010, Mac Mini 4,1 – 7,1. Mac Pro – all models from 2010, Mac Pro 5,1 – 6,1 Which means most devices made prior to 2008 won’t be able to run it. The ones that fall short – macOS High Sierra won’t run on –.
iMac 4,1 – 9,1. MacBook 1,1 – 5,1.
MacBook Pro 1,1 – 5,2. MacBookAir 1,1 – 2,1. Mac Mini 1,1 – 3,1. Mac Pro 1,1 – 4,1. Xserve 1,1 – 3,1 How you find your Mac Model Number Apple Menu About This Mac More Info System Report Model Identifier Or for you terminal freaks systemprofiler SPHardwareDataType HEVC H.265 MPEG-H Part 2 Decoding The new operating system supports (HEVC) but only machines with the Intel Kaby Lake take full advantage of it. iMac: late 2015 27″ or newer, mid-2017 21.5″ or newer. MacBook Pro: late 2016 or newer.
MacBook Retina: early 2016 or newer.