v3.9.0

punkpeye/fastmcpv3.9.0Jul 15, 2025by github-actions[bot]

AI Summary

This is a minor release (v3.9.0) of FastMCP that adds the ability to return application/json responses, addressing feature request #149. The release includes one enhancement that allows developers more flexibility in the types of responses they can return.

Key Highlights

Added support for application/json responses
Addresses issue #149
Minor version update from v3.8.5

New Features

Allow returning application/json responses from the MCP server

Full Release Notes

# [3.9.0](https://github.com/punkpeye/fastmcp/compare/v3.8.5...v3.9.0) (2025-07-15)


### Features

* allow to return application/json responses ([#149](https://github.com/punkpeye/fastmcp/issues/149)) ([5662204](https://github.com/punkpeye/fastmcp/commit/5662204e88746f63fae39a661fbae200d94c3bdf))