Git Merge Strategies: 3-Way Merge vs Merge Conflict

Day 4 of Coding for DevOps 🚀 Most developers know "git merge" — but do you know WHAT actually happens under the hood? Today I learned the difference between 3-Way Merging and Merge Conflicts — and honestly, this changes how you think about collaboration in Git. Here's the breakdown: 🔀 3-Way Merge (ORT Strategy) When you branch off, do work, and your teammates also push commits to main — Git doesn't just blindly combine files. It uses 3 reference points: → The common ancestor (where both branches split) → Your branch's latest commit → The target branch's latest commit Git compares all 3 and auto-generates an extra "merge commit" that ties everything together. This is also called the ORT strategy (Ostensible Recursive Twin). No manual effort needed — unless both sides touch the same file. That's where things get spicy. 👇 ⚡ Merge Conflict A conflict happens when two branches modify the SAME file and Git can't decide which version wins. Git literally stops the merge and says: "You figure it out." How to resolve it in 4 steps: 1️⃣ Identify the conflicted file (Git highlights it) 2️⃣ Open it in nano or vi — you'll see conflict markers showing both versions 3️⃣ Delete the markers, keep the code you want 4️⃣ git add → git commit → push to remote Clean history. Problem solved. 💡 Key takeaway: Conflicts aren't errors — they're Git asking for human judgment. The earlier you understand this, the smoother your team workflows become. What's your go-to strategy for avoiding merge conflicts on large teams? Drop it below 👇 #DevOps #Git #100DaysOfCode #CodingForDevOps #GitMerge #SoftwareEngineering #DevOpsEngineer #TechLearning #OpenSourceDev

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