Trunk-Based Development Explained

Integrate small, frequent changes into the main branch — reducing merge conflicts and keeping the trunk always deployable.

Trunk-Based Development

Trunk-based development is a source code branching model where developers integrate small, frequent changes directly into the main branch (trunk), using short-lived feature branches or no branches at all.

Explanation

Trunk-based development prioritizes continuous integration into the main branch. Instead of long-lived feature branches that diverge for weeks, developers create short-lived branches (hours to 1-2 days) or commit directly to trunk. This reduces merge conflicts, enables continuous integration, and accelerates delivery. Feature flags hide incomplete work from users while it exists in production code. The approach requires strong test suites, CI/CD automation, and code review practices to maintain quality at high commit frequency.

Bookuvai Implementation

Bookuvai uses trunk-based development for projects requiring rapid iteration. Developers create short-lived branches merged within 1-2 days, feature flags protect incomplete features, and CI/CD pipelines validate every merge. This keeps the main branch always deployable.

Key Facts

  • Small, frequent integrations into the main branch
  • Short-lived branches (hours to 1-2 days) or direct trunk commits
  • Reduces merge conflicts and integration pain
  • Feature flags hide incomplete work in production code
  • Requires strong test suites and CI/CD automation

Related Terms

Frequently Asked Questions

How is trunk-based different from GitFlow?
GitFlow uses long-lived develop, feature, and release branches. Trunk-based uses one main branch with short-lived branches. GitFlow provides more isolation but slower integration; trunk-based provides faster integration but requires stronger CI/CD and testing.
Is trunk-based development risky?
Not with proper practices. Strong test suites catch regressions, feature flags isolate incomplete work, and CI/CD validates every change. The risk of merge conflicts and integration issues from long-lived branches is often greater.
How do feature flags work with trunk-based development?
Feature flags wrap incomplete code so it exists in the codebase but is not active for users. When the feature is complete and tested, the flag is enabled. This allows code to be merged to trunk continuously without exposing unfinished work.