https://support.apple.com/en-me/guide/mac-help/mh40780/mac
In iCloud Drive on your Mac, you must choose which version of a document to keep if you edit it on multiple devices before the changes are saved.
document versionsicloud drivemac appleconflict
https://www.prweb.com/releases/firmex_releases_document_versions_feature/prweb12384619.htm
Toronto, ON (PRWEB) January 08, 2015 -- Firmex is pleased to announce the release of Firmex Versions, a new feature that allows our virtual data room users...
document versionsfirmexreleasesfeature