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.
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.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.Apple has dropped the 'X' moniker from Mac OS in the release of Sierra.Apple may elect to change features at the last second, as it has done on countless operating system improvements before.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.
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.
IMAP e-mail is by default server based, and if you trust your internet provider to back it up, may be a better solution.
Do not trust those reports, until those reports are published after the official release of Sierra.
Macs must have a minimum of 10.7.5, Lion with all the security updates installed to install Sierra.
This Frequently Answered Question (FAQ) page is divided into these sections As of the writing of this FAQ (Frequently answered question page), I've updated every Mac OS X version on an Intel Mac through 10.4.11 to 10.11 using the method of this FAQ.