Git Tracks Changes with Snapshots, Not File Differences

🚀 𝐃𝐚𝐲 36 — 𝐇𝐨𝐰 𝐆𝐢𝐭 𝐓𝐫𝐚𝐜𝐤𝐬 𝐂𝐡𝐚𝐧𝐠𝐞𝐬 Today I explored how Git actually tracks changes. Most people think Git stores file differences. But the reality is different. Git works using snapshots. Every time you commit code, Git saves a snapshot of the entire project at that moment. Each commit contains: • Author name • Timestamp • Commit message • Unique commit ID (SHA-1 hash) • Snapshot of the project files Example: Commit A → Initial project Commit B → Added login feature Commit C → Fixed login bug Each commit represents a complete version of the project. Why this is powerful: ✔ Easy rollback to previous versions ✔ Clear history of changes ✔ Trace which developer introduced which change This design is one reason why Git is extremely fast and reliable. Tomorrow I’ll explain Git architecture: Working Directory, Staging Area, and Repository. #Git #DevOps #SoftwareEngineering #EngineeringJourney #100DaysOfLearning #BackendEngineering #SystemDesign #LearningInPublic #SoftwareEngineering #TechGrowth #DeveloperJourney #100DaysOfLearning

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