Changelog

Retool 4.1 is now available on the Edge release channel for self-hosted organizations.

The following patches are now available on the Stable release channel:

• Retool 3.334.17
• Retool 3.300.32

Update your Retool instance to apply the latest bug fixes and security patches.

Retool's new app builder now supports importing React apps from external sources, such as Replit, Lovable, and Claude Code, for further refinement and development in Retool.

To import your React app in Retool, generate a .zip file of the code, and select Import React code from the app builder. Learn more about how it works.

Apps created with the new app builder can now be protected and checked into your chosen Source Control Manager (SCM). Source Control lets organizations manage changes using remote SCM providers GitHub, GitLab, AWS CodeCommit, Bitbucket, and Azure Repos. Using this distributed approach, your users can:

• Prevent unwanted changes to apps.
• Work collaboratively and methodically through reviews.
• Edit React code from your preferred development environment.

To get started, first protect your app. Then you can create, publish, and tag new versions.

Builders on cloud instances can now use Retool's MCP server to build apps. Apps are built using React and use Retool's updated app builder. Connect the MCP server to Claude, ChatGPT, Codex, Cursor, Kiro, or another agentic coding environment, and describe the app you want to build. Retool's building agent generates the app and returns a preview link. Publish and manage the app from the app builder.

Beyond initial generation, you can also use the MCP server to:

• Continue building or iterating on an existing app.
• Monitor active builds and view past agent activity.
• Review function runs that require human approval.
• Inspect or read the files of an existing app.
• Cancel a failed or in-progress build.

App building tools require the user to be a builder, and the builder must authorize the mcp:write scope. Refer to the tools reference for the full list.

Claude Opus 4.8 is now available on Retool Cloud through Anthropic and Amazon Bedrock. It can be used with AI resource queries, with Retool Agents, and in Assist. Support for self-hosted Retool is coming in an upcoming release.

A new AI-powered app builder is now available. Build production-ready React apps using natural language in the app builder or through your favorite coding agent via MCP. Whatever or however you build, everything inherits the security standards your organization has already approved and implemented.

The app builder includes:

• A Chat tab where you describe changes in natural language and an AI agent plans and executes them, with file uploads and per-thread model selection.
• A Data tab that shows the resources connected to your app and the functions that interact with them, with optional approval gates on writes.
• A Code tab that lets you view and edit every file your app uses.
• Support for organization themes, third-party npm packages, and publishing and version history.

Apps run on React 19 and a curated set of supporting libraries.

Admins can use the configuration guide to set up their organization to use the new app builder.

Retool 3.396 is now available on the Edge release channel for self-hosted organizations.

The following patches are now available on the Stable release channel:

• Retool 3.334.16
• Retool 3.300.31

Update your Retool instance to apply the latest bug fixes and security patches.

The following patches are now available on the Stable release channel:

• Retool 3.334.15
• Retool 3.334.14
• Retool 3.300.30

Update your Retool instance to apply the latest bug fixes and security patches.