How would you explain Trunk-Based Development vs Long-Lived Branches to a junior engineer?

Answers use simple, clear English.

Quick interview answer

Explain Trunk-Based Development vs Long-Lived Branches in one sentence, then a tiny example, then one “don’t do this” tip. Simple view: Short-lived branches merge to main frequently; feature flags hide incomplete work. Long-lived release branches increase merge pain and drift.

Detailed answer

Junior-friendly explanation of Trunk-Based Development vs Long-Lived Branches: Plain English: Simple view: Short-lived branches merge to main frequently; feature flags hide incomplete work. Long-lived release branches increase merge pain and drift. Tiny example: Team merges daily to main; dark-launches checkout redesign behind flag. One warning: Week-long feature branches without syncing main.

Full explanation

Keep jargon low, then layer detail. Short-lived branches merge to main frequently; feature flags hide incomplete work. Long-lived release branches increase merge pain and drift.

Follow-up questions

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Parent context — Trunk-Based Development vs Long-Lived Branches

Simple view: Short-lived branches merge to main frequently; feature flags hide incomplete work. Long-lived release branches increase merge pain and drift.

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