Additional Yosemite updates from 10.10 to 10.10.5 may be found on my page Mac OS X Updates Jaguar and above, and further security updates may be found on Apple Support downloads Be sure to look at Roaring Apps for compatible applications that are compatible, and ignore entries prior to October 16, 2014 stating they are Yosemite compatible.i Photo is dropped by Apple in favor of a new Pictures Application.
Here are the requirements with the Machine ID (x,x) as stated in the System Profiler for Mac OS 10.12 Sierra: Mac Book (Late 2009 or newer) 6,1 Mac Book Pro (Mid 2010 or newer) 6,1 Mac Book Air (Late 2010 or newer) 3,1 Mac mini (Mid 2010 or newer) 4,1 i Mac (Late 2009 or newer) 10,1 Mac Pro (Mid 2010 or newer) 5,1 10.12.6 is now available.
For updated downloads, visit my Jaguar and Up page This information is available on Apple's Sierra Requirements page Same minimum system requirements exist under Mac OS X 10.8 and later.
Apple released Security Update 2017-003 for Yosemite On February 25, 2014, a critical security flaw was corrected in all versions of 10.9 with the 10.9.2 update (earlier versions of Mac OS X are unaffected): 10.9.2 Combo.
A similar flaw was corrected on i Phones, i Pad, i Pod Touch with the i OS updates below (i OS 5.x and earlier are unaffected).
Account Edge has also noticed there is a bug when mailing PDFs directly from Mac OS X Mail.
They recommend using the Print window's built-in PDF - Mail PDF function when you go to print a PDF.
Its System Requirements on the low end are identical to its predecessor Sierra, although some new features may require newer hardware. Do not depend on older news of compatibility than the official release date, as that may pertain to prerelease beta software compatibility, which may differ from the release version.
Roaring Apps has continued its third party updating of both i OS and Mac OS X software compatibility. If you want quicker news, please consider donating to my Tech Support and/or Go Fundme If you want support for Apple's new hardware acceleration, you will need: i Mac: late 2015 27" or newer, 2017 21.5" or newer Mac Book: early 2016 or newer Mac Book Pro: late 2016 or newer See to help identify your Mac.
Apple has dropped the 'X' moniker from Mac OS in the release of Sierra.