Google Docs, Slides and Sheets finally gain iPhone X and better iOS 11 support
Basically, this means iPhone X users will now be able to take advantage of the whole screen, as toolbars have been included with the phone's unusual form factor. There aren't any other visual changes aside from the added iPhone X support, or at least Google doesn't mention anything else.
Finally, Google mentions that the updates contain some bug fixes and performance improvements, so you'll probably notice that some issues have disappeared (if you found any) and that the apps are smoother than ever.
Things that are NOT allowed: