Possible to access/restore past versions of Notes in iCloud?
Assuming you have 2 devices, let's say an iPhone and iPad, there is only one thing you can do:


delete something on your iPhone
as soon as you notice, enable airplane mode on your iPad
unlock iPad &amp; open notes
copy note to somewhere else
turn off airplane mode
copy note back to notes


Other than that, there unfortunately doesn't seem to be anything you can do.