---
title: "Changing Workflow code with patching"
description: "How can you change a Workflow while preserving replay of existing runs?"
status: "coming-soon"
language: "en"
canonical: "https://bulnik.dev/en/articles/topics/T16.03/"
topicId: "T16.03"
---

> Coming soon — this article is being prepared. Below are its question, intended outcome, and place in the story.

## The question

How can you change a Workflow while preserving replay of existing runs?

## What we will work through

Change a Workflow while preserving replay of existing runs.

## Before you begin

Previously covered: Checking compatibility through replay.

- [Checking compatibility through replay](/en/articles/topics/T16.02/)