I create all my websites in WordPress. Last week WordPress released and major update called “Gutenberg” which radically changes the layout for clients updating sites themselves. Luckily my theme Divi is ahead of the game and released a work around option so that for now clients access will look and feel the same. I have been through all my websites individually to update and check all is OK and contacted my clients to inform them and for them to let me know of any issues. All fine so far!
More info here