If you want to get this information out to as many people as possible, here's the way to do it: Delay your big push for another week For next week, push a small update: add a notice at the top of the character sheet, that changes are coming the week after, with a button to open up a section with more detailed information. The vast majority of people using the sheets will not be reading these forums, and are very unlikely to stuumble across the notification on twitter. But if they are using the sheet, they are guaranteed to see a notice you put on the sheet itself. (At least if they play weekly - that itself isnt guaranteed). Another method is to create a versioning sheet worker, that automatically migrates data when possible. I wouldnt be surprised if the devs on github require you to do this - I've seen it happen before for much smaller changes.