---
title: "Merge Queue: PR exit reasons and idle time breakdown in stats"
date: 2026-03-20
tags:
  - Merge Queue
description: "New stats endpoints for the merge queue dashboard: PR exit reasons count (unique PRs by final exit reason) and idle time breakdown (capacity, schedule, freeze). Powers the new Sankey flow diagram and stacked time chart."
---

Two new stats capabilities for the merge queue dashboard:

**PR Exit Reasons**

New visualization showing how pull requests flow through your merge queue — see at a glance how many PRs were merged successfully, cancelled, or failed, broken down over time. This powers the new Sankey flow diagram on the dashboard.

**Idle Time Breakdown**

Queue time stats now break down idle time into actionable categories:

- **Capacity** — time spent waiting because the queue was at max parallel checks
- **Schedule** — time spent waiting due to merge schedule restrictions
- **Freeze** — time spent waiting because the queue was frozen
This helps you understand where your merge queue time is actually spent and what to optimize.