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Every time Rocket responds to a Build message, it saves the result as a new version. You get a complete history of your project that you can compare, roll back, label, and deploy - all from the chat panel.

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How versions work

At the bottom of each Rocket message in chat you will see a Files row showing the version number and which files changed. Below it are action buttons.

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Code diff

Code diff opens a side-by-side view of every file that changed in this version. Added lines are highlighted in green, removed lines in red.
Code diff panel showing green and red highlighted lines across two changed files.Code diff panel showing green and red highlighted lines across two changed files.

Code diff view showing changed files

Use code diff to:
  • Review exactly what Rocket changed before moving on
  • Understand the impact of a specific edit
  • Debug unexpected behavior after a build

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Rollback

Rollback reverts your entire project to the selected version instantly.
Rolling back discards every version after the one you select. The discarded code, labels, and checkpoints leave no reference in chat. This cannot be undone.
1

Find the version

Locate the version you want to return to in the chat.
2

Click Rollback

Click Rollback.
3

Confirm the rollback

Click Rollback now to confirm.
Rollback confirmation dialog warning that changes cannot be recovered.Rollback confirmation dialog warning that changes cannot be recovered.

Rollback confirmation dialog

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Create label

Labels let you name and bookmark a specific version for easy reference later.
Create label is only available for web apps. It is not available for mobile apps.
A label is tied to its version. If you roll back past that version, the label is removed with the code. Chat will no longer show that codebase, label, or checkpoint. This cannot be undone.
1

Find the version

Locate the version in the chat.
2

Click Create label

Click Create label.
3

Name the label

Type a name and press Enter.
Create label input field open below the version action buttons.Create label input field open below the version action buttons.

Create label input on a version

Good times to create a label:
  • Before a risky change you might want to undo
  • When a version is ready for review (“Client review v1”)
  • At a significant milestone (“MVP”, “Beta launch”)

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Launch a version

You can deploy any version directly - it does not have to be the most recent one.
Launching a particular version is only available for web apps. It is not available for mobile apps.
1

Find the version

Locate the version in the chat.
2

Click Launch

Click Launch.
3

Select environment

Select Staging or Production.
Version card with Launch button highlighted.Version card with Launch button highlighted.

Launch button on a version card

Launching a version does not affect your working state in the editor. Your project continues from wherever you are - only the deployed environment changes.
For a full breakdown of how staging and production work together, see Launch your site.

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What’s next?

Preview your app

Test your app on different screen sizes before launching.

Launch your site

Understand staging and production, and manage your releases.

View and edit code

Browse and edit your project source files directly.

Chat with Rocket

Keep building - every message creates a new version automatically.