Releasesby GlyphNew Overview page in Settings
Live on cloud • Enterprise 4.1.0 Edge • Enterprise 4.0.17 Stable • Enterprise Available on cloud instances. Admins can now use the Overview page in Settings to set up their Retool organization and respond to pending user requests.
Also shipped Jun 9, 2026Retool in June 2026 →
Package Firewall: Blocking 8,000+ malicious packages daily
Replit has introduced Package Firewall, a security feature that blocks malicious and compromised dependencies from being installed in projects.
Gremlin: turning open tasks into pull requests
Gremlin is an autonomous agent that uses Mastra and OpenCode to convert Sentry issues, Linear tasks, and Slack instructions into pull requests.
Sandbox SDK - Deprecating Sandbox SDK features
Sandbox SDK 1.0 preview A preview of Sandbox SDK 1.0 is available on @cloudflare/sandbox@next . For new projects, or to move past these deprecations in one migration, refer to the Sandbox SDK 1.0 preview and Migrate . Today we are announcing the deprecation of several features from the Sandbox SDK.
Modal 1.5.0
This is a major release that includes several new features (named Images, version-pinned Function lookups, Sandbox domain allowlists), a new modal skills CLI, and a small number of breaking changes. We're introducing a "named Image" concept, akin to a Modal-native Image registry.
FLUX Outpainting , New Fast Mode
FLUX Outpainting now supports a mode parameter that trades quality for speed.
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Settings navigation bar reorganization
Live on cloud • All plans Available on cloud instances. The Settings navigation is reorganized into clearer, task-based groups so you can find what you need more quickly. Settings are now grouped under the following sections: Management, Monitoring, Permissions, Authentication, Features, and Customization.
Update notifications for self-hosted admins
Self-hosted admins now see an Update available banner on the Retool home page when a newer release or patch update is available for their instance. The banner shows the available version and links directly to the relevant release notes. Admins can dismiss each notification individually , dismissals are remembered per version.
Permissions database migration in self-hosted Retool 4.0 and 4.34
Self-hosted Retool 4.0 and 4.34 include an automatic database migration that prepares your instance for upcoming improvements to how Retool handles organization permissions. This migration runs in the background during deployment and does not affect any functionality.
Self-hosted Retool 4.0 upgrade FAQ
If you have an existing Retool deployment instance, this FAQ can provide guidance as you prepare an upgrade plan. I have a deployment that is not Kubernetes-based (e.g., ECS). Can I upgrade in place? Kubernetes with Helm is the only supported deployment path for Retool 4.0 and later.
Import apps using MCP
Live on cloud • All plans Public beta 4.0 Edge • All plans Public beta 4.0.17 Stable • All plans Public beta You can now use Retool's MCP server to import React apps directly from your agentic coding environment. Open a React app, and ask Retool to import the app.
Self-hosted Retool 4.0 Stable
Retool 4.0 is the most significant infrastructure change to self-hosted Retool since launch. It introduces the new app builder built on React, with AI-assisted building and a real-time collaborative editing environment. These features are powered by a set of additional services: the agent sandbox, JS executor, MCP server, and app building agent.
Browser notifications when app building
Live on cloud Self-hosted version 4.19.0 and later Retool now supports audio and visual browser notifications for app building. If you prompt Retool to build an app and navigate away from the tab, a ping sounds and a red dot appears on the favicon of the tab when you need to return to it.
Retool 4.1 Edge for self-hosted instances
Retool 4.1 is now available on the Edge release channel for self-hosted organizations.