Releasesby GlyphBuild apps via MCP
note App building with the MCP server is available in cloud instances. It will be available in upcoming stable and edge releases. Builders on cloud instances can now use Retool's MCP server to build apps. Apps are built using React and use Retool's updated app builder .
Also shipped May 28, 2026Retool in May 2026 →
Hex now connects to your apps as an MCP client
🔌 Hex is now an MCP client Your data tells you what happened. The why lives somewhere else , in strategy docs, meeting notes, Slack threads, customer conversations. Today, the Hex agent can read all of it. Connect any tool that exposes an MCP server to the Hex agent. As part of our public beta, we’re launching with two named connectors: Notion & Linear.
Pipelines pricing announced
Cloudflare Pipelines is a streaming data platform that ingests events, transforms them with SQL, and writes to R2 as JSON, Parquet, or Apache Iceberg ↗ tables. Pipelines now has published pricing based on two usage dimensions: the volume of data processed by SQL transforms and the volume of data delivered to sinks. Ingress into a Pipeline stream is free.
R2, R2 Data Catalog - R2 Data Catalog pricing announced
R2 Data Catalog is a managed Apache Iceberg ↗ data catalog built directly into R2 buckets, queryable by any Iceberg-compatible engine such as Spark, Snowflake, and DuckDB. R2 Data Catalog now has published pricing for catalog operations and table compaction, in addition to standard R2 storage and operations . Billing is not yet enabled.
R2 SQL pricing announced
R2 SQL is a serverless, distributed query engine that runs SQL against Apache Iceberg ↗ tables stored in R2 Data Catalog . R2 SQL now has published pricing based on a single dimension: the volume of compressed data scanned to execute your queries.
You can now use the DigitalOcean Control Panel to create, connect to, tag, resize, and restore Managed...
You can now use the DigitalOcean Control Panel to create, connect to, tag, resize, and restore Managed Weaviate clusters (in private preview). See the Managed Weaviate docs for more information.
Linear Diffs
Agents generate large volumes of code, but individuals are still accountable for the changes that merge. This leads to a lot of review work, and the capability and performance of traditional review tools hasn't kept up. Today, we're releasing Linear Diffs to make reviewing code a fast and fluid experience native to Linear.
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Claude Opus 4.8 available in Retool
Live on cloud Claude Opus 4.8 is now available on Retool Cloud through Anthropic and Amazon Bedrock . It can be used with AI resource queries , with Retool Agents , and in Assist . Opus models require you to bring your own key for AI resource queries and Assist; Retool Agents can use Opus with a Retool-managed key.
Retool's new app builder
A new AI-powered app builder is now available. Build production-ready React apps using natural language in the app builder or through your favorite coding agent via MCP . Whatever or however you build, everything inherits the security standards your organization has already approved and implemented.
Retool 3.396 Edge for self-hosted instances
Retool 3.396 is now available on the Edge release channel for self-hosted organizations.
Self-hosted Retool 3.334 and 3.300 stable updates
The following patches are now available on the Stable release channel: Retool 3.334.16 Retool 3.300.31 Update your Retool instance to apply the latest bug fixes and security patches.
Protect apps in the new app builder
Live on cloud • Enterprise Public beta Apps created with the new app builder can now be protected and checked into your chosen Source Control Manager (SCM). Source Control lets organizations manage changes using remote SCM providers GitHub, GitLab, AWS CodeCommit, Bitbucket, and Azure Repos.
Retool 4.1 Edge for self-hosted instances
Retool 4.1 is now available on the Edge release channel for self-hosted organizations.
Self-hosted Retool 3.334 and 3.300 stable updates
The following patches are now available on the Stable release channel: Retool 3.334.17 Retool 3.300.32 Update your Retool instance to apply the latest bug fixes and security patches.
React app import
Live on cloud • All plans Public beta 4.0 Edge • All plans Public beta 4.0.17 Stable • All plans Public beta Retool's new app builder now supports importing React apps from external sources, such as Replit, Lovable, and Claude Code, for further refinement and development in Retool.