Version Control

A system that records changes to files over time so you can recall specific versions later. Git is the dominant version control system in software development.

Version control is the undo button for code, at any scale. It enables collaboration without overwriting each other's work, and provides a full history of every change made.

A developer accidentally breaks the checkout flow. With version control, she reverts to the last working version in 30 seconds, instead of spending hours debugging.