> ## Documentation Index
> Fetch the complete documentation index at: https://docs.suprsend.com/llms.txt
> Use this file to discover all available pages before exploring further.

# MCP Changelog

> Release notes for the hosted SuprSend MCP server: new tools, improvements, fixes and breaking changes in every version.

The SuprSend MCP server is hosted, so every client connected to `https://mcp.suprsend.com/mcp` gets each release as soon as it's out. There's nothing to update. This page lists what changed in each version. For how versions are numbered, see [Versioning](https://docs.suprsend.com/reference/mcp-versioning.md). For the current tools, see the [tool list](https://docs.suprsend.com/reference/mcp-tool-list.md).

## Release History

> [accordion] v0.5.13 - Latest
>
> **Release Date:** November 3, 2026
>
> v0.5.13
> Nov 3, 2026
>
> **Fixes:**
>
> <ul>
>   <li>[`assets_create_upload`](https://docs.suprsend.com/reference/mcp-tool-list#assets) tells agents what to do when an upload fails, so they stop requesting new upload links over and over</li>
> </ul>

> [accordion] v0.5.12
>
> **Release Date:** November 2, 2026
>
> v0.5.12
> Nov 2, 2026
>
> **Improvements:**
>
> <ul>
>   <li>Internal changes only. No change to tools</li>
> </ul>

> [accordion] v0.5.11
>
> **Release Date:** October 30, 2026
>
> v0.5.11
> Oct 30, 2026
>
> **Improvements:**
>
> <ul>
>   <li>[`workflows_get`](https://docs.suprsend.com/reference/mcp-tool-list#workflows) returns the workflow's full step tree as JSON</li>
> </ul>

> [accordion] v0.5.10
>
> **Release Date:** October 30, 2026
>
> v0.5.10
> Oct 30, 2026
>
> **Changes:**
>
> <ul>
>   <li>The SuprSend MCP server is out of beta</li>
> </ul>
>
> **Improvements:**
>
> <ul>
>   <li>[`templates_validate`](https://docs.suprsend.com/reference/mcp-tool-list#templates) returns validation warnings, and resolves mock data the same way a publish does. Without `mock_data`, it uses the template's saved mock data</li>
> </ul>

> [accordion] v0.5.9
>
> **Release Date:** October 29, 2026
>
> v0.5.9
> Oct 29, 2026
>
> **New:**
>
> <ul>
>   <li>[`broadcasts_trigger`](https://docs.suprsend.com/reference/mcp-tool-list#broadcasts) takes `precompute` for scheduled broadcasts: SuprSend prepares the audience, preferences and messages up to 2 hours before the send, so a time-critical broadcast goes out on schedule</li>
> </ul>

> [accordion] v0.5.8
>
> **Release Date:** October 27, 2026
>
> v0.5.8
> Oct 27, 2026
>
> **Fixes:**
>
> <ul>
>   <li>Template mock data keeps its recipient and actor IDs, and the tools say more clearly when they show the draft</li>
> </ul>

> [accordion] v0.5.7
>
> **Release Date:** October 27, 2026
>
> v0.5.7
> Oct 27, 2026
>
> **Fixes:**
>
> <ul>
>   <li>[`messages_get_content`](https://docs.suprsend.com/reference/mcp-tool-list#messages) explains that a message sent moments ago may not have content yet</li>
> </ul>

> [accordion] v0.5.6
>
> **Release Date:** October 23, 2026
>
> v0.5.6
> Oct 23, 2026
>
> **Improvements:**
>
> <ul>
>   <li>[`workspaces_list`](https://docs.suprsend.com/reference/mcp-tool-list#workspaces) can search by name or slug, pages through results, and returns the total count</li>
>   <li>Faster connections for accounts with many workspaces: the server instructions show a sample of workspaces and the total, and each tool call checks access to its own workspace</li>
> </ul>

> [accordion] v0.5.5
>
> **Release Date:** October 23, 2026
>
> v0.5.5
> Oct 23, 2026
>
> **Improvements:**
>
> <ul>
>   <li>Connections scoped to one workspace connect without listing every workspace on the account</li>
> </ul>

> [accordion] v0.5.4
>
> **Release Date:** October 21, 2026
>
> v0.5.4
> Oct 21, 2026
>
> **Improvements:**
>
> <ul>
>   <li>The server's registry entry links its repository, for the GitHub MCP Registry</li>
> </ul>

> [accordion] v0.5.3
>
> **Release Date:** October 21, 2026
>
> v0.5.3
> Oct 21, 2026
>
> **Improvements:**
>
> <ul>
>   <li>[`templates_upsert`](https://docs.suprsend.com/reference/mcp-tool-list#templates) warns when the change removes channels from the draft</li>
> </ul>

> [accordion] v0.5.2
>
> **Release Date:** October 20, 2026
>
> v0.5.2
> Oct 20, 2026
>
> **Improvements:**
>
> <ul>
>   <li>Preference and subscription reads say clearly when the user doesn't exist</li>
> </ul>

> [accordion] v0.5.1
>
> **Release Date:** October 19, 2026
>
> v0.5.1
> Oct 19, 2026
>
> **Improvements:**
>
> <ul>
>   <li>[`templates_upsert_variant`](https://docs.suprsend.com/reference/mcp-tool-list#templates) merges your change into the variant's existing content</li>
>   <li>[`templates_upsert_variant`](https://docs.suprsend.com/reference/mcp-tool-list#templates) refuses to edit an email body built in the drag-and-drop designer, so the design isn't overwritten</li>
>   <li>[`templates_get_variant`](https://docs.suprsend.com/reference/mcp-tool-list#templates) leaves out the designer's layout JSON</li>
> </ul>

> [accordion] v0.5.0
>
> **Release Date:** October 19, 2026
>
> v0.5.0
> Oct 19, 2026
>
> **New:**
>
> <ul>
>   <li>[`workflows_diff`](https://docs.suprsend.com/reference/mcp-tool-list#workflows) and [`templates_diff`](https://docs.suprsend.com/reference/mcp-tool-list#templates): show what changed between two versions, or between the draft and a version</li>
>   <li>[`workflows_list_versions`](https://docs.suprsend.com/reference/mcp-tool-list#workflows): list a workflow's versions</li>
> </ul>

> [accordion] v0.4.5
>
> **Release Date:** October 18, 2026
>
> v0.4.5
> Oct 18, 2026
>
> **Fixes:**
>
> <ul>
>   <li>Server text refers to the docs search tool by its current name, [`docs_search`](https://docs.suprsend.com/reference/mcp-tool-list#docs)</li>
> </ul>

> [accordion] v0.4.4
>
> **Release Date:** October 15, 2026
>
> v0.4.4
> Oct 15, 2026
>
> **Improvements:**
>
> <ul>
>   <li>Agent skills ship with the server, so [`docs_get_skill`](https://docs.suprsend.com/reference/mcp-tool-list#docs) no longer depends on fetching them at runtime</li>
> </ul>

> [accordion] v0.4.3
>
> **Release Date:** October 14, 2026
>
> v0.4.3
> Oct 14, 2026
>
> **New:**
>
> <ul>
>   <li>[`data_user_properties_schema`](https://docs.suprsend.com/reference/mcp-tool-list#data) can search property names</li>
> </ul>
>
> **Fixes:**
>
> <ul>
>   <li>[`data_user_properties_schema`](https://docs.suprsend.com/reference/mcp-tool-list#data) reads paginated responses correctly</li>
>   <li>[`users_set_preferences`](https://docs.suprsend.com/reference/mcp-tool-list#users) reports not-found errors correctly</li>
>   <li>Security fixes in how message content is cleaned and masked</li>
> </ul>

> [accordion] v0.4.2
>
> **Release Date:** October 14, 2026
>
> v0.4.2
> Oct 14, 2026
>
> **Improvements:**
>
> <ul>
>   <li>Publishing a workflow or template with no changes answers "Nothing to publish"</li>
> </ul>

> [accordion] v0.4.1
>
> **Release Date:** October 13, 2026
>
> v0.4.1
> Oct 13, 2026
>
> **Improvements:**
>
> <ul>
>   <li>Every tool has a title and a read-only hint, as directories such as Claude's require</li>
>   <li>A wrong `workspace` input lists the workspaces you can use</li>
>   <li>[`vendors_list_types`](https://docs.suprsend.com/reference/mcp-tool-list#vendors) returns each vendor type's config schema and allowed values</li>
>   <li>[`vendors_upsert`](https://docs.suprsend.com/reference/mcp-tool-list#vendors) checks the config against the vendor type's schema before saving, and explains a refusal field by field</li>
>   <li>[`workflows_save_draft`](https://docs.suprsend.com/reference/mcp-tool-list#workflows) and [`workflows_publish`](https://docs.suprsend.com/reference/mcp-tool-list#workflows) explain that a workflow needs a live preference category</li>
> </ul>

> [accordion] v0.4.0
>
> **Release Date:** October 12, 2026
>
> v0.4.0
> Oct 12, 2026
>
> **New:**
>
> <ul>
>   <li>First public release of the hosted SuprSend MCP server at `https://mcp.suprsend.com/mcp`. Sign in with your SuprSend account over OAuth; there's nothing to install and no service token</li>
>   <li>Workspaces in every region (US, EU and India) on one connection</li>
>   <li>Tools for workspaces, users, objects, tenants, vendors, lists, broadcasts, workflows, events, schemas, templates, translations, preferences, messages, delivery data, assets, expressions and docs. See the [tool list](https://docs.suprsend.com/reference/mcp-tool-list.md)</li>
>   <li>Your SuprSend role decides which tools you get: members get read tools, and admins also get write and send tools</li>
>   <li>Four skills come with the connection: `suprsend-semantic-layer`, `suprsend-template-schema`, `suprsend-workflow-schema` and `suprsend-docs-support`. Clients without skill support read them with [`docs_get_skill`](https://docs.suprsend.com/reference/mcp-tool-list#docs)</li>
>   <li>Server instructions, built for each connection from its scope, tell the agent which tools to use and how</li>
>   <li>In clients that support MCP Apps, [`data_query`](https://docs.suprsend.com/reference/mcp-tool-list#data) results show as charts and tables in the chat</li>
>   <li>Channel secrets are masked in every tool result</li>
>   <li>Listed in the official MCP Registry as `com.suprsend/mcp`</li>
> </ul>


## Related topics

- [MCP Versioning and Updates](https://docs.suprsend.com/reference/mcp-versioning.md)
- [Product Updates](https://docs.suprsend.com/changelog/overview.md)
- [Changelog](https://docs.suprsend.com/docs/self-hosted/changelog.md)
- [CLI Changelog](https://docs.suprsend.com/reference/cli-changelog.md)
- [SDK Changelog](https://docs.suprsend.com/docs/developer/versioning/sdk-changelog.md)


This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.