Description: The term ‘Non-revision’ in the context of version control systems refers to files or changes that are not associated with a specific revision in the repository. In version control systems, each change made to the source code is recorded as a revision, allowing developers to track the history of modifications and revert to previous versions if necessary. However, there are occasions when certain files or changes may not be linked to a revision, meaning they have not been formally recorded in the system. This can occur, for example, when local modifications are made that have not been committed to the repository or when temporary files are used that are not intended to be included in the project’s history. The lack of association with a revision can complicate code management, as developers may lose track of changes made and their context. Therefore, it is crucial for development teams to maintain good revision logging practices to ensure the integrity and traceability of the code over time.