Uploading the library is only to save an electronic document for backup. There is a little difference. Nothing, and there are so many students who graduate every year that there can be no mistakes.

Generally, the final graduation thesis (electronic version) is submitted to the library after the thesis defense. Once the paper is reviewed, it cannot be revised.

You'd better revise the paper before uploading it to the library. The requirements of each school are different, depending on the specific requirements of the school.