mcp-ui Releases

A server-side bug fix release with multiple improvements including TypeScript type-only imports, MCP Apps spec updates, and message format changes. Mirrors many fixes from the client release.

Dec 18, 2025

A compatibility-focused bug fix release that reverts the externalUrl adapter changes. This was done to maintain compatibility with existing systems.

Dec 8, 2025

A bug fix release that changes the proxy sandbox implementation to use document.write. This addresses an issue with how content is loaded in the sandboxed proxy iframe.

Dec 1, 2025

A bug fix release that changes the proxy sandbox implementation to use document.write. This addresses an issue with how content is loaded in the sandboxed proxy iframe, matching the server-side fix.

Dec 1, 2025

This is a minor release (5.16.0) of MCP-UI that adds a single new feature - an externalUrl adapter. The release was published on November 30, 2025, following version 5.15.0.

Nov 30, 2025

This release (5.17.0) adds a new externalUrl adapter feature to the MCP-UI client. The update appears to be a minor feature release focused on enhancing URL handling capabilities. No breaking changes or other modifications are noted in this release.

Nov 30, 2025

This release adds an MCP Apps adapter to the mcp-ui server, enabling integration with MCP Apps. The update is a minor feature release with no breaking changes or other modifications.

Nov 29, 2025

This release (5.16.0) adds support for MCP Apps by introducing a new adapter, enabling integration with MCP Apps functionality. The update is a minor feature release with a single enhancement focused on expanding compatibility.

Nov 29, 2025

This release (5.14.0) adds support for metadata in the Python SDK, allowing developers to include additional context or information when using the SDK. The update is a minor feature release with no breaking changes.

Nov 29, 2025

This release (5.15.0) addresses a critical bundling issue with the Apps SDK adapter while introducing metadata support for the Python SDK. The update ensures the adapter is properly bundled and initialized with configuration, and adds new metadata capabilities for Python SDK users.

Nov 29, 2025

This is the 1.0.0 release of MCP-UI, a library for rendering UI content in the Model Context Protocol. The release adds Python and Ruby SDK support, introduces Web Component rendering, enables bidirectional proxy messaging, and includes major naming refactoring from 'delivery/flavor' to 'encoding/framework' to improve clarity.

Nov 4, 2025

This is a patch release (5.13.1) focused on bug fixes, addressing issues with the rawhtml proxy mode message relay and ensuring the Apps SDK adapter is properly bundled and initialized with configuration.

Oct 25, 2025

This is a patch release (5.14.1) focused on fixing a bug in the rawhtml proxy mode. The update enables bidirectional message relay, resolving issue #138 where messages could only flow in one direction.

Oct 24, 2025

This release (5.13.0) adds proxy support for rawHtml functionality and includes a minor bug fix for a file extension reference in package.json. The update addresses a feature request from issue #132.

Oct 22, 2025

This release (5.14.0) adds proxy support for the rawHtml functionality, allowing users to route rawHtml requests through a proxy. No breaking changes are included in this update.

Oct 22, 2025

This is a minor patch release (5.13.1) of MCP-UI that addresses a single bug fix related to an incorrect file extension reference in package.json. Released on October 21, 2025, this update is a maintenance release focused on fixing a configuration issue.

Oct 21, 2025

This release of mcp-ui adds support for adapters and introduces a new ui-request-render-data message type, while also fixing a bug related to the isUIResource function using the EmbeddedResource type.

Oct 13, 2025

This release (5.13.0) adds support for adapters, allowing the MCP-UI to work with different adapter implementations. The update is relatively minor with a single feature enhancement focused on adapter support.

Oct 13, 2025

This is a minor bug fix release that addresses an issue with the isUIResource function by updating it to use the EmbeddedResource type. The fix resolves issue #117 and was tracked via issue #122.

Oct 8, 2025

This is a minor feature release that adds a new message type for requesting UI render data. The update addresses a specific enhancement request (#111) and was released on September 23, 2025.

Sep 23, 2025