Some products available through the Epic Games launcher require that Mac OS X Yosemite users are updated to version 10.10.5 or later.
For that you will need to go to Old Mac OS X Speed.
When downloading updates in the Mac App Store, it’s a simple thing to start and pause your download.
Make sure you’re logged into the correct i Tunes account for the specific update, and hit the dark gray Update button when you’re ready.
IMAP e-mail is by default server based, and if you trust your internet provider to back it up, may be a better solution.
Moving from POP to IMAP is something you have to do with care, since by default POP is based on storing everything on your Mac.
On January 25, 2018 Apple released a security update.
Apple has dropped the 'X' moniker from Mac OS in the release of Sierra.
Note, download times may be longer than usual on first release.
On September 25, 2017 Apple released 10.13 High Sierra.
Its System Requirements on the low end are identical to its predecessor Sierra although some new features may require newer hardware. Also, unlike Sierra, your Mac must be running a mimimum of Mountain Lion.
i Photo has special notes under 10.10 Notes There are known Microsoft Office issues, addressed by Microsoft on their knowledgebase.
Software tested before that date may not work with the operating system. issues have been reported on Apple Support Communities.