What is Major Version and Minor Version in SharePoint:
Major version: A major version of the file is the one which is the final
Approved copy with all the Changes.
Minor
version : A major version of
the file is the one required interim
check-ins while a particular file is under development.
I hope the above information will help you to resolve the issue, in case of any queries/questions regarding the above mentioned information then please let me know. I would be more than happy to help you as well as resolves your issues, Thank you.