# Trace Changes Across Drafts in ChatGPT

> A negotiation leaves a series of drafts. Ask ChatGPT for a version history and get one document showing which draft, and which author, introduced each change.

## Overview

After several turns of a negotiation you have a chain of drafts, and a question like "when did this indemnity cap change, and who changed it?" Comparing the first draft with the last shows what is different, but not at which turn. A version history answers that: it is one document covering the whole chain, in which each change that survived to the final draft is attributed to the draft that introduced it.

## Before you start

You need the Version Story plugin in ChatGPT. See [Set Up the Version Story ChatGPT Redlining Plugin](/help/install-version-story-in-chatgpt).

## Build the version history

1. Start a chat with Version Story selected, from **Try in chat** on the plugin's page or the **Plugins** menu below the message box.
2. Attach the drafts.
3. Give the order they were written in, and the name to show for each:

   ```
   Create a version history of these drafts in this order: Original, Buyer comments, Seller comments, Final. Show which version introduced each change.
   ```

ChatGPT returns one document in which every surviving change is marked with the draft it came from.

## Get the order right

The result depends on the order of the drafts. State it explicitly, oldest first. Dates in file names help, but ChatGPT should not have to guess.

## Related

- [Compare Documents in ChatGPT](/help/compare-documents-in-chatgpt), for a redline between two drafts
- [Merge Edits in ChatGPT](/help/merge-edits-in-chatgpt), for drafts edited in parallel, not in sequence