Updates, changes, and improvements at Retool.
Refer to the stable and edge release notes for detailed information about self-hosted releases.
Claude Opus 5 is now available to cloud organizations through Anthropic. It can be used with AI resource queries and with Retool Agents. Opus 5 requires you to bring your own key for AI resource queries; Retool Agents can use Opus 5 with a Retool-managed key. Support for self-hosted Retool is coming in an upcoming release.
Retool is deprecating versions 1.0 and 2.0 of the Microsoft SQL integration. Organizations with Microsoft SQL resources still using these versions must update their resource configuration to use version 3.0.
This deprecation will first take effect on cloud instances on August 24, 2026. It will then take effect in the next edge and stable releases that follow.
Version 3.0 has been available since February 2, 2026 for cloud instances and the 3.334 stable release. If you haven't intentionally created a resource on an older integration version, your resource is likely already on version 3.0 and requires no changes.
To upgrade an existing resource, open its settings from the Resources page, change Connector version to Version 3.0, and save your changes.
Versions 1.0 and 2.0 will be removed entirely from cloud instances in Q4 2026, followed by the subsequent edge and stable releases. After that, apps, workflows, and queries that depend on Microsoft SQL resources still using version 1.0 or 2.0 will stop working.
For Enterprise organizations that use Source Control to protect apps, you can now use the app builder to check out a branch that you created outside of Retool. This enables you to transition your changes from a local development environment to the app builder. This can be useful for visually validating your changes in the preview canvas.
When prompting in the Chat tab of the app builder, the agent asks clarifying questions to better understand your intent and create your desired outcome. The agent can ask multiple-choice or open-ended questions.
You can now build apps with more AI models: Claude Sonnet 5, the GPT-5.6 models (Sol, Terra, and Luna), and Claude Fable 5. Choose a model for each thread in the app builder's Chat tab. Admins can set the organization's default app building provider and model in the AI settings.
Claude Sonnet 5 can be used on paid plans with a Retool-managed key or your own key. The GPT-5.6 models and Claude Fable 5 require you to bring your own key, which is available on the Enterprise plan.
Retool 4.27 is now available on the Edge release channel for self-hosted organizations.
The following patches are now available on the Stable release channel:
Update your Retool instance to apply the latest bug fixes and security patches.
You can now upload files to be used as assets in your app through the Chat tab in the app builder. Previously, uploaded files could only be used as context for the agent.
Common use cases for uploaded files as assets include:
This change applies only to apps built using the new app builder, not to classic apps.
The following patches are now available on the Stable release channel:
Update your Retool instance to apply the latest bug fixes and security patches.
Retool 4.23 is now available on the Edge release channel for self-hosted organizations.