Tech Comparisons
Git Flow vs Trunk-Based Development
Git Flow and Trunk-Based Development represent two fundamentally different approaches to managing code changes. Your choice affects release cadence, merge conflicts, CI/CD complexity, and team velocity.
| Feature | Git Flow | Trunk-Based Development |
|---|---|---|
| Branch Lifespan | Git Flow uses long-lived branches: main, develop, feature/*, release/*, hotfix/*. Feature branches can live for weeks. | Trunk-Based Development uses short-lived branches (1–2 days max) or direct commits to main/trunk. |
| Merge Frequency | Infrequent merges — feature branches accumulate changes before merging to develop, then to main. | Continuous merges — developers integrate to trunk at least once per day, keeping branches minimal. |
| CI/CD Compatibility | Complex CI/CD pipelines — multiple branches need separate pipelines and merge gates. | Purpose-built for CI/CD — single source of truth means one pipeline, faster feedback loops. |
| Release Control | Explicit release branches give fine control over what ships — ideal for versioned software with scheduled releases. | Any commit on trunk is potentially releasable — requires feature flags for incomplete work. |
| Merge Conflicts | Long-lived branches accumulate divergence, leading to painful merge conflicts ("merge hell"). | Daily integration keeps branches short — conflicts are smaller and caught immediately. |
| Team Size Fit | Git Flow suits teams with formal release cycles, multiple versions in production, or large isolated features. | Trunk-Based suits teams practicing continuous delivery, shipping frequently, and using feature flags. |
Git Flow Pros & Cons
Pros
- Clear separation between stable and in-progress code
- Easy to manage multiple production versions simultaneously
- Formal release process with dedicated release branches
- Familiar to teams coming from SVN or waterfall processes
Cons
- Long-lived branches cause merge conflicts and "merge hell"
- Slow feedback — bugs discovered late in integration
- Complex branching rules slow down small teams
- Poorly suited to continuous deployment
Trunk-Based Development Pros & Cons
Pros
- Forces continuous integration — catches bugs immediately
- Simpler branching model — less cognitive overhead
- Purpose-built for CI/CD and continuous deployment
- Reduces merge conflicts through frequent small integrations
Cons
- Requires feature flags for incomplete work — adds complexity
- Harder to manage multiple production versions
- Requires high test coverage and fast CI pipelines
- Discipline-intensive — one bad commit breaks everyone
Verdict
Trunk-Based Development wins for teams doing continuous deployment, microservices, and SaaS products where you ship daily. It scales better, reduces merge pain, and works naturally with CI/CD pipelines. Git Flow wins for teams shipping versioned software (mobile apps, libraries, on-premise products) where multiple versions need support simultaneously. Most modern web teams should default to Trunk-Based Development — Git Flow's complexity only pays off when you genuinely need to maintain multiple release versions.