How can multiple changes be combined into a single commit in a version control system?

To merge multiple changes (commits) into a single commit in the Git version control system, the git rebase operation with interactive mode is used.

Example:

1. Run the command:

git rebase -i HEAD~N

where N is the number of the most recent commits you want to combine.

2. In the editor that opens, replace pick with squash (or s) for the commits you want to merge with the previous one.

3. Save and close the editor, then edit the message of the final commit.

This allows you to combine several commits into one, keeping the history cleaner and easier to read.