Changelog

Multi-instance releases are now generally available to cloud instances and self-hosted instances on version 3.330 or later, with support for both apps and workflows.

Organizations using Source Control can manage releases of protected apps and workflows across multiple deployment instances. This feature enables you to publish different release versions across instances, making it easy to test newer versions on staging or development instances before promoting to production.

Beginning in the Q3 2026 stable release, self-hosted instances using the multiplayer feature must set the LICENSE_KEY environment variable on the multiplayer service container. While this environment variable is not yet required, Retool recommends setting it now to avoid any service interruptions.

You can now unpublish workflow releases from the Releases tab.

This feature is also available for workflows protected with Source Control. When unpublishing a release on a protected workflow, the latest saved version on the main branch will be live to users.

Assist now supports the ability to create and edit multipage apps. Previously, Assist could only work with one page at a time.

Assist can now:

• Plan and build a multipage app from scratch.
• Create, edit, and rename pages.
• Move queries and code between global and page scopes.
• Create globally-scoped frames and components, such as Navigation, to help users move between pages.
• Identify and correct page scope errors.

While Assist is generating, navigating between pages is disabled to prevent errors.

A number of security vulnerabilities in the React framework and related frameworks, like next.js, were recently disclosed. These vulnerabilities did not impact Retool.

• CVE-2025-55182
• CVE-2025-55183
• CVE-2025-55184

These vulnerabilities were related to React's server-side rendering systems which are not used by Retool. As such, there is no action for cloud- or self-hosted customers to take.

Retool's website was also not impacted. We confirmed with our vendor that these vulnerabilities were already mitigated before being publicly disclosed. After the patches were released they applied the patches the same day.

Retool now supports two modes for prompting with Assist: Ask and Build. Use Ask as a safe, read-only way to understand and debug your app without adding or changing components or logic, and Build when you’re ready for Assist to make edits.

• Ask mode: Assist replies with explanations, suggestions, or debugging help. When in Ask mode, Assist cannot modify your app.
• Build mode: Assist can create and edit components, queries, and logic in response to your prompt.

Both modes use the same understanding of your app, your data, Retool features, and documentation.

Assist defaults to using Build mode. You can switch between modes at any time.

Retool added support for DeepSeek-V3.2 in Baseten. DeepSeek-R1 is no longer supported, and DeepSeek-V3.2 will be used instead.

OpenAI's model GPT-5.2 is now available in Retool. It can be used with AI actions and with Retool Agents.

Assist can now automatically summarize long threads. The amount of information sent to the AI provider (the context window) increases as you build. Instead of sending your full message history to the AI provider with every request, Retool now regularly compacts the thread and sends the conversation summary along with any following messages. This improvement keeps the context window within the required limits, reducing the likelihood of errors and preventing interruptions when prompting with Assist.

Thread summarization can occur either during or after app generation.

The Agent-to-agent (A2A) protocol provides standardized and secure communication between external agents and agents built with Retool, so you can trigger your agent from an external agent, or embed agents in your own systems.

Retool has implemented the core set of A2A functionality, so you can:

• View an agent card.
• Send a message.
• Poll for updates on tasks.
• Stream processing or task updates via Server-Sent Events (SSE).
• Cancel tasks.

To allow external agents to communicate with Retool agents, you can enable the A2A trigger on your agent's configuration page, and copy the endpoint and API key into your A2A client. The A2A client then sends messages via common messaging formats like the HTTP+REST and JSON-RPC APIs, and Server-Sent Events (SSE) for long-running streaming updates.

Explore the following pages for more information:

• Set up an A2A trigger to learn how to enable the A2A trigger.
• A2A endpoints to learn how to cURL for endpoint responses.
• A2A tutorial to learn how to trigger your agent from an external agent.