What is the main function of version control systems?

Version control systems are primarily designed to manage changes to source code. This means they enable developers to track code modifications over time, collaborate with other team members, and revert to previous versions of the code if needed. By keeping a history of changes along with the ability to branch and merge different lines of development, version control systems help ensure code integrity and facilitate teamwork in software development.

These systems help safeguard against data loss or conflicts that may arise from simultaneous modifications by multiple developers, thereby streamlining the process of software maintenance and enhancement. This comprehensive tracking of code changes not only aids in managing ongoing development but also plays a crucial role in project management by documenting the evolution of the software.

While options such as improving user interface design, creating user documentation, and enhancing system security are all important aspects of software development, they fall outside the primary purpose of version control systems, which is specifically focused on the management and recording of changes to source code.