iOS 11 introduced support for modern HEIF and HEVC codecs developed by the Moving Picture Experts Group (not Apple's proprietary formats) that keep high-resolution photos and videos taken with iPhone and iPad from eating up all your available storage. This post tells you more about it.
HEVC
230+ new features and changes in iOS 11 for iPhone and iPad [video]
Andrew O'Hara ∙ September 19, 2017
iOS 11 has been finally released to the public. We shared Apple's official release notes yesterday, but we've spent a little time of our own coming up with any changes and features not present in iOS 10.
There is an unbelievable amount of things to touch on, so we highly recommend watching our video to see it all in action.
100+ new features in macOS High Sierra
Andrew O'Hara ∙ Updated May 23, 2018
Say hello to macOS High Sierra, Apple's newest operating system update for Macs. Whether you're on an iMac or one of the Touch Bar-outfitted MacBook Pro models, there is a lot to love in this latest release of Apple's desktop operating system.