Git

Problem

Five developers modify the same codebase. You need to know: * who changed what, * when, * why, * how to combine changes, * how to return to an earlier version.

Solution — Git

Git records versions of the project as commits connected by history.

A → B → C → D
         ↘ E

Developers can branch, merge and inspect history.

Core idea: Git gives collaborative software development a versioned, mergeable history.