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Overview

Merge queue that guarantees branch stability and accelerates development at enterprise scale

If you've hit the limits of GitHub's serial merge queue - main turning red, CI costs spiraling, chaos at scale - Trunk Merge Queue is the enterprise upgrade built for reliability at any scale. Handle your noisiest pipelines, cut CI costs up to 90%, and fire and forget.

Benefits of using Trunk Merge Queue

Trunk Merge Queue solves three critical problems that break traditional workflows at scale.

#1: Stop main from turning red

The problem: Flaky tests fail unpredictably. Your team mutes tests, locks branches, and gets paged to investigate.

How Trunk fixes it: Failed PRs stay in queue while downstream PRs continue testing. If a later PR that includes the failed code passes, Trunk knows the failure was transient, both PRs merge together.

Key capabilities:

  • Anti-flake protection with optimistic merging

  • Pending failure depth prevents cascade failures

  • Automatic quarantine of flaky tests

→ Learn about anti-flake protection

#2: Stop CI costs from spiraling

The problem: GitHub runs full CI for every PR. 50 PRs/day = 50 full runs. With growing teams, CI costs become seven figures.

How Trunk fixes it: Intelligent batching tests up to 100 PRs in a single CI run. When a batch fails, automatic bisection isolates the culprit without ejecting the entire batch or requiring manual debugging.

Key capabilities:

  • Intelligent Batching

  • Batch up to 100 PRs

  • Auto-Bisection

  • Configurable batch size & wait time

→ See how batching works

#3: Stop waiting in a serial queue

The problem: Single-track queue means your 2-line fix waits 45 minutes behind a slow feature PR testing an unrelated part of the codebase.

How Trunk fixes it: Parallel queues create independent test lanes for non-overlapping changes. Frontend merges in Lane A while backend runs in Lane B. Native Bazel/Nx integration analyzes impacted targets automatically.

Key capabilities:

  • Parallel Queues

  • Bazel/Nx integration

  • Impacted targets analysis

  • Priority merging

→ Explore parallel queues

Try Trunk Merge Queue

Start with free trial:

  1. Install Trunk GitHub App (5 minutes)

  2. Create your first queue (2 minutes)

  3. Submit a test PR

Total setup time: < 10 minutes

→ Get started

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