The use of versions as a means of distinguishing similar items.(noun)
Wiktionary.org : Text is available under the Creative Commons Attribution-ShareAlike License
Use "versioning" in a sentence
"SyncBack, but their SE/Pro versioning is horrible. rsync is very powerful and can easily be made to handle versioning to whatever depth you like."
"The GAE deployment and versioning is easy and fun."
"After all, versioning is really just a marketing strategy that enables software companies to leach more money out of your poor, beleaguered customer bases."