> ## Documentation Index
> Fetch the complete documentation index at: https://graphite-58cc94ce.mintlify.site/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# Pull Request Versions

> Learn how to view the history of changes to a PR in Graphite using versions.

Graphite uses "versions" of a pull request to keep track of the history of a PR. On first submit, a PR is `v1` and is incremented each time a PR is updated and submitted through `gt submit`.

<Frame>
  <img src="https://mintcdn.com/graphite-58cc94ce/2jkT2_o2plivZefr/images/versions%20dropdown%201%20(light).png?fit=max&auto=format&n=2jkT2_o2plivZefr&q=85&s=a68457979d0abf4b1888bb183ac85b8c" width="2650" height="923" data-path="images/versions dropdown 1 (light).png" />
</Frame>

## Switch between PR versions

By default, the pull request page shows you a “diff” between v1 (the initial submitted state of the PR) and vN, where N is the latest version of the PR. You can toggle between the version you’re currently viewing by pressing **V**, or by the clicking the **"Compare"** dropdown and choosing a version for the “right” and “left” sides of the diff.

<Frame>
  <img src="https://mintcdn.com/graphite-58cc94ce/2jkT2_o2plivZefr/images/versions%20dropdown%202%20(light).png?fit=max&auto=format&n=2jkT2_o2plivZefr&q=85&s=d5bde012be317bee541fffd2ffddda75" width="2671" height="1379" data-path="images/versions dropdown 2 (light).png" />
</Frame>

### "Hide reviewed changes"

In the event that a pull request is updated *after* you've already reviewed it, you'll see a banner prompting you to `hide reviewed changes`.

<Frame>
  <img src="https://mintcdn.com/graphite-58cc94ce/vY1t0Vsr-LRJgMIn/images/7bb373a5-1695053666-changes-since-last-reviewed.png?fit=max&auto=format&n=vY1t0Vsr-LRJgMIn&q=85&s=37832377625c2149c7fd3f0ffc817054" width="1294" height="206" data-path="images/7bb373a5-1695053666-changes-since-last-reviewed.png" />
</Frame>

Clicking `hide reviewed changes` automatically changes your view so you see a comparison between the last reviewed version and the latest version of the pull request.