Technology
How does version control work?
Version control tracks every change made to a project's files, saving snapshots over time. It lets people work together without overwriting each other, see who changed what, and roll back to any earlier version — making it essential for software teams.
See it in motion.
Watch a 2-minute animated lesson that shows exactly how version control works.
Step by step
- 1It saves snapshots of files as they change.
- 2It records who changed what and when.
- 3It lets many people collaborate safely.
- 4You can revert to any earlier version.
Frequently asked questions
- How does version control work?
- It saves a history of changes, so teams can collaborate, review edits, and revert to earlier versions.
- What problems does version control solve?
- It prevents lost work and overwrites, tracks changes, and lets teams work on the same project at once.
- What's the most popular version control system?
- Git, which underpins platforms like GitHub and GitLab.