---
title: "Dynamic merge queue batch size"
date: 2026-06-19
tags:
  - Merge Queue
description: "Configure batch_size as a {min, max} range and the merge queue scales batch size automatically — small when quiet, larger to absorb backlog."
---

You can now set `batch_size` to a `{min, max}` range instead of a fixed number. When the queue is quiet, Mergify keeps batches at `min` for the smallest possible blast radius; when pull requests pile up and all parallel-check slots are busy, it grows batches toward `max` to drain the backlog faster. Existing fixed `batch_size` values keep working unchanged.