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How does version control work?

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Quick answer

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.

Step by step

  1. It saves snapshots of files as they change.
  2. It records who changed what and when.
  3. It lets many people collaborate safely.
  4. You can revert to any earlier version.

People also ask

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.