Self-hosted Retool stable releases - 2026
Release notes for all stable channel releases of Self-hosted Retool in 2026.
Retool releases a version on the stable channel each quarter. A stable release is generally four versions behind the cloud-hosted version at the time.
Preparation and testing of a stable version occurs approximately four weeks prior to its release. Stable releases are rigorously tested before they are published. As the release cycle is less frequent, administrators can more easily maintain and upgrade deployments.
Retool supports each stable release for six months. During this time, Retool will release patch updates that contain bug fixes or security updates. Patch updates do not contain functionality changes and can be applied more quickly than performing a full version upgrade.
After six months, a stable release is considered deprecated. You can continue using a deprecated release but it will no longer receive updates. At this time, you should upgrade to the latest stable release.
Documentation for stable releases
Retool provides versioned product documentation for supported stable releases. When browsing Retool Docs, use the version dropdown menu in the navbar to switch to a relevant version.
note
Release lines are grouped by the year of their initial release. Patch updates released in later years are included in the same section as the original release line.
Self-hosted Retool 4.34
Latest releaseCurrently supported
| Release | Released | Digest | |
|---|---|---|---|
| First | 4.34.0 | Aug 26, 2026 | sha256:16da833c89213015be7f385f237e66791fbe7b54fded8c22fe225128aa4d8495 |
| Latest | 4.34.0 | Aug 26, 2026 | sha256:16da833c89213015be7f385f237e66791fbe7b54fded8c22fe225128aa4d8495 |
Best practice
Subscribe to the Atom feed for 4.34 to get notified when new patch releases are available.
Major changes in this release
New features, significant changes, and any actions required when upgrading.
| Type ↑ | Change ↕ |
|---|---|
| new | Retool 4.0 database migration Self-hosted Retool 4.34 also runs the automatic RBAC-preparation database migration if it wasn't already completed on 4.0. |
| new | Import apps using MCP Import existing apps into Retool using an MCP-connected AI coding agent. |
| new | Browser notifications when app building Retool pings you when your input is needed while building an app. |
| new | Restore changes from chat Restore a previous version of an app directly from the AI chat panel. |
| new | Microsoft Graph integration Connect to Microsoft Graph as a new resource integration. |
| new | Presto supported as an Agents resource Presto is now a supported resource for Retool Agents. |
| new | Snowflake Postgres integration Connect to Snowflake's Postgres-compatible interface as a new resource integration. |
| new | Claude Fable 5 available in Retool Retool now supports Anthropic's Claude Fable 5 model. |
| new | Claude Sonnet 5 available in Retool Retool now supports Anthropic's Claude Sonnet 5 model. |
| new | Object permissions for Enterprise Enterprise organizations can grant permissions on individual objects, not just at the group level. |
| new | New models for building apps New AI models are available for building apps. |
| new | Gmail integration available for self-hosted instances Self-hosted Retool instances can now create Gmail resources. |
| new | Debug console for the app builder Use the app builder's new debug console to inspect apps, surface errors and logs, and resolve issues with the agent. |
| new | Multi-instance releases for apps Multi-instance releases are now supported for apps built in the new app builder, in addition to classic apps and workflows. |
| new | Manage app building agent context The app building agent has more context about your app when responding to prompts. |
| new | Check out local branches in app builder Check out branches created locally in the app builder's source control panel. |
| new | BYOK AI token management Use the Get BYOK AI token usage endpoint and Usage Analytics page to monitor BYOK usage. |
| new | Agent-generated questions to clarify user intent The app building agent asks clarifying questions when needed. |
| new | Trigger workflows from apps Retool now supports triggering workflows from functions in the new app builder. |
| new | Customize the Content Security Policy for apps Admins can now customize the Content Security Policy applied to apps. |
| new | Publishing apps on custom domains Retool now supports publishing apps on custom domains. |
| new | Claude Opus 5 available in Retool Retool now supports Anthropic's Claude Opus 5 model. |
| new | Claude Opus 4.8 available in Retool Retool now supports Claude Opus 4.8. |
| new | New Overview page in Settings Admins can set up and manage their Retool organization from the new Overview page. |
| new | Admin onboarding hub now available in the Settings Overview page Admins can now complete organization configuration using guided wizards to get started, and track organization notifications from a new Action Center panel. |
| improved | Improvements to classic app conversion The new app builder now supports converting classic apps with custom components and organization-level themes. |
| improved | Upload files as app assets Upload files directly as assets while building an app. |
| improved | Multiple threads per branch in the app builder Create multiple chat threads within a single branch in the app builder. |
| improved | Improved performance of app building agent Retool made improvements to the performance and efficiency of the app building agent, lowering AI credit consumption. |
| improved | Settings navigation bar reorganization Retool's Settings navigation is reorganized into clearer groups so admins can find configuration options faster. |
| security fix | Microsoft SQL Server (Windows Authentication): unsupported ODBC connection params are now rejected Microsoft SQL Server resources using Windows Authentication now reject ODBC connection string parameters outside an allowlist. |
| deprecated | Deprecation of Microsoft SQL integration versions 1.0 and 2.0 Microsoft SQL Server connector versions 1.0 and 2.0 are deprecated in favor of version 3.0. |
| deprecated | Deprecation of the Vertica resource type Retool is deprecating the Vertica resource type. |
| deprecated | Upcoming conclusion of public beta for Assist Retool will remove Assist on September 30, 2026. |
| 34 changes | |
Patch release notes
Bug fixes, improvements, and changes across all patch versions in this release.
| Type ↑ | Description ↕ |
|---|---|
| 4.34.0601 changes↓ | |
| 601 changes | |
Self-hosted Retool 4.0
Currently supported
| Release | Released | Digest | |
|---|---|---|---|
| First | 4.0.0 | Jun 11, 2026 | sha256:673b37866382cf034fc4ea4b4e005b5f1405bd36107e6e905d81e30b1f781b68 |
| Latest | 4.0.13 | Aug 27, 2026 | sha256:fa59f3eba6a026990193bdf779f2e9d71be1cf1009bd96e4ca679218e96641fd |
Best practice
Subscribe to the Atom feed for 4.0 to get notified when new patch releases are available.
Major changes in this release
New features, significant changes, and any actions required when upgrading.
| Type ↑ | Change ↕ |
|---|---|
| new | Retool 4.0 database migration Self-hosted Retool 4.0 runs an automatic database migration to prepare for Role-Based Access Control. |
| new | Retool 4.0 upgrade FAQ Common questions about upgrading to Retool 4.0. |
| new | Retool's new app builder Retool's new React-based app builder is now available on self-hosted. |
| new | React app import Import existing React applications into the new Retool app builder. |
| new | Source control for apps Source control support for apps in the new app builder. |
| new | Update notifications for self-hosted admins Self-hosted admins now see a banner when a new Retool release or patch update is available. |
| new | Hardened images in stable channel Security-hardened Docker images are now available for stable channel deployments. |
| new | MCP server for Retool MCP server for managing your Retool organization and users. |
| new | Build apps via MCP Build Retool apps using an MCP-connected AI coding agent. |
| new | Configurable memory limits for workflow code execution Configure memory limits for workflow code execution at the org or workflow level. |
| new | Analytics for Retool Workflows Monitor run counts, failure rates, latency, and resource usage across your workflows. |
| new | View audit logs across spaces Organization admins can view audit logs across all spaces from a single page. |
| new | Python runtime version selector Select the Python runtime version for your workflow, with support for Python 3.14. |
| new | Redesigned Workflows landing page The Workflows landing page has a new design, now available for all self-hosted deployments. |
| 14 changes | |
Patch release notes
Bug fixes, improvements, and changes across all patch versions in this release.
| Type ↑ | Description ↕ |
|---|---|
| 4.0.710 changes↓ | |
| 4.0.69 changes↓ | |
| 4.0.51 change↓ | |
| 4.0.47 changes↓ | |
| 4.0.38 changes↓ | |
| 4.0.115 changes↓ | |
| 4.0.106 changes↓ | |
| 4.0.87 changes↓ | |
| 4.0.24 changes↓ | |
| 4.0.17 changes↓ | |
| 4.0.1311 changes↓ | |
| 4.0.123 changes↓ | |
| 4.0.915 changes↓ | |
| 4.0.0447 changes↓ | |
| 540 changes | |
Self-hosted Retool 3.334
Currently supported
| Release | Released | Digest | |
|---|---|---|---|
| First | 3.334.0 | Mar 3, 2026 | sha256:6144a2cf9e7110f06d69a28959b9fb4a855cb93d4f30f2896ec07876360f4bb9 |
| Latest | 3.334.29 | Aug 19, 2026 | sha256:36cee5b386cbc74a5c3dc70b37cb832491b8580d5e23ea8b62d9a4106b9aa437 |
Best practice
Subscribe to the Atom feed for 3.334 to get notified when new patch releases are available.
Major changes in this release
New features, significant changes, and any actions required when upgrading.
| Type ↑ | Change ↕ |
|---|---|
| new | Multi-instance releases for Source Control Multi-instance releases for Source Control are now generally available. |
| new | LICENSE_KEY required for multiplayer on self-hosted in Q3 2026 LICENSE_KEY is required for multiplayer on self-hosted starting in Q3 2026. |
| new | Agents supports A2A protocol A2A protocol support for triggering Retool agents from external agents is now available. |
| new | Ask and Build mode with Assist Users can toggle between exploration and building modes in Assist. |
| new | Assist thread summarization Assist automatically summarizes long threads. |
| new | Improvements to writing SQL with Assist Retool made improvements to the quality of SQL queries written with Assist. |
| new | Multiple Secrets Manager configurations beta Self-hosted organizations can now create multiple Secrets Manger configurations and retrieve secrets from different locations. |
| new | Resource type restrictions for self-hosted Retool Self-hosted organizations can prevent users from creating or using certain types of resources. |
| new | Improvements to editing with Assist Retool made improvements to the quality and speed of layout edits with Assist. |
| new | Create README files for workflows Create a README file in a workflow |
| new | Google Slides integration New integration with Google Slides |
| new | Assist supports Azure OpenAI Assist supports Azure OpenAI as a single model provider. |
| new | Role-based access controls for Assist Assist now supports role-based access controls. |
| new | Theming with Assist Retool now supports additional controls for configuring your app theme with Assist. |
| new | New version of Microsoft SQL Server integration, planned deprecation of Version 1 and Version 2 A new version of the Microsoft SQL Server integration is available. Version 1 and Version 2 will be deprecated in the 2026 Q3 stable release. |
| new | Assist supports multipage Assist now supports creating and editing multipage apps. |
| new | Unpublish a workflow release Unpublish a release on protected and unprotected workflows. |
| new | OpenAI GPT-5.1 available in Retool OpenAI GPT-5.1 is now available in Retool. |
| new | OpenAI GPT-5.2 available in Retool Retool now supports GPT-5.2. |
| new | Google Gemini 3 Pro Preview available in Retool Google Gemini 3 Pro Preview is now available in Retool. |
| new | Hardened images available in stable channel Optionally use security-hardened images for stable releases. |
| deprecated | Baseten models updated DeepSeek-V3.2 is now supported in Baseten, replacing the deprecated DeepSeek-R1. |
| 22 changes | |
Patch release notes
Bug fixes, improvements, and changes across all patch versions in this release.
| Type ↑ | Description ↕ |
|---|---|
| 3.334.262 changes↓ | |
| 3.334.74 changes↓ | |
| 3.334.241 change↓ | |
| 3.334.211 change↓ | |
| 3.334.203 changes↓ | |
| 3.334.196 changes↓ | |
| 3.334.185 changes↓ | |
| 3.334.163 changes↓ | |
| 3.334.145 changes↓ | |
| 3.334.122 changes↓ | |
| 3.334.51 change↓ | |
| 3.334.41 change↓ | |
| 3.334.31 change↓ | |
| 3.334.17 changes↓ | |
| 3.334.171 change↓ | |
| 3.334.291 change↓ | |
| 3.334.282 changes↓ | |
| 3.334.279 changes↓ | |
| 3.334.251 change↓ | |
| 3.334.231 change↓ | |
| 3.334.154 changes↓ | |
| 3.334.131 change↓ | |
| 3.334.112 changes↓ | |
| 3.334.103 changes↓ | |
| 3.334.92 changes↓ | |
| 3.334.85 changes↓ | |
| 3.334.0197 changes↓ | |
| 271 changes | |