Releasesby GlyphSelf-hosted Retool 4.34 and 4.0 stable updates
The following patches are now available on the Stable release channel: Retool 4.34.4 Retool 4.0.17 Update your Retool instance to apply the latest bug fixes and security patches.
Also shipped Sep 23, 2026Retool in September 2026 →
New features and improvements in Copilot for JetBrains
GitHub Copilot for JetBrains 1.18.0 brings AI-assisted tool approvals, more control over agent conversations, and shared skills and instructions for your organization. You can also review plans with the Codex agent and manage MCP tools with persistent controls.
Scalar and Batch Unity Catalog Python UDFs are now generally available
Scalar and Batch Unity Catalog Python UDFs are now generally available on all supported compute types. This release adds named handlers for row-at-a-time scalar UDFs, removes the five-UDF-call-per-query limit, and aligns scalar TIMESTAMP inputs with PySpark behavior.
Build governed data and AI apps without code (Beta)
You can now build governed data and AI apps without code. Genie App Builder authors apps in natural language, App Spaces enforce governance, and Serverless Micro Apps scale to zero when idle. See Governed agentic app building .
Non-deterministic aggregate functions are supported with dynamic table incremental refresh (General availability)
Non-deterministic aggregate functions such as approx count distinct , approx percentile , and approx top k are now supported with dynamic table incremental refresh in INCREMENTAL, AUTO, and ADAPTIVE refresh modes. For incremental refresh, these functions are supported only in the SELECT clause. any value remains unsupported.
More ways to request and configure Copilot code reviews
GitHub Copilot code review now offers additional personal configurations to an expanded set of Copilot plans and an enterprise-level default setting. These improvements are now generally available: A dedicated personal settings page for automatic review and your default review effort An enterprise-wide default review effort setting for organization-owned...
Node 20 is no longer available in GitHub Actions
This is the final notification that Node 20 is no longer available on GitHub Actions runners. Runners now use Node 24 for JavaScript actions. The temporary ACTIONS_ALLOW_USE_UNSECURE_NODE_VERSION opt-out is no longer available. If you maintain a JavaScript action, update its runs.using value to node24 and publish a new release as soon as possible.
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Retool 4.62 Edge for self-hosted instances
Retool 4.62 is now available on the Edge release channel for self-hosted organizations.
Retool CLI
Live on cloud • Team • Business • Enterprise Public beta 4.62 Edge • Team • Business • Enterprise Public beta 4.34.4 Stable • Team • Business • Enterprise Public beta The Retool CLI is now available in public beta.
Changes to available AI models on the Free plan
Live on cloud Organizations on the Free plan now use Retool-provided AI models for app building. These models, prefixed with Retool , have been tuned by Retool for enhanced performance and speed for app building. Access to models from other providers is now only available on paid plans.
Use external MCPs in app builder
Live on cloud • All plans Public beta Retool now supports using external MCPs as resources in the app builder . The app building agent creates function calls to utilize tools from your connected MCP servers, which can be used while building or at app runtime.
Embed apps in iframes
Live on cloud • All plans You can now embed apps in other apps, in classic apps, and in apps or websites outside Retool using an iframe. To enable app embedding, an organization admin adds Content Security Policy directive rules that name the pages that are allowed to frame your app. Refer to the Embed apps guide to learn how.
Self-hosted Retool 4.34 and 4.0 stable updates
The following patches are now available on the Stable release channel: Retool 4.34.5 Retool 4.0.18 Update your Retool instance to apply the latest bug fixes and security patches.
Retool 4.66 Edge for self-hosted instances
Retool 4.66 is now available on the Edge release channel for self-hosted organizations.
Conclusion of public beta for Assist
Retool has concluded the public beta period for Assist, and Assist is no longer available in the classic app builder for most cloud or self-hosted instances. Certain customers retained access until December 31, 2026, in order to migrate off the tool. If your organization retained access, see Assist for supported models and setup instructions.