v4.21.1

Name: dirsearch
Author: maurosoria

maurosoria/dirsearchv4.21.1Sep 25, 2026by github-actions[bot]

Upgrading?

What changed from v4.21.0 → v4.21.1?What's new in v4.21.2 after v4.21.1?

AI Summary

FastMCP v4.21.1 resolves CLI hanging issues during validation and improves type checking accuracy.

Key Highlights

Fixed CLI validate hanging when a server starts during import.
Type-checked validate targets using the project's tsconfig.
Applied authentication checks to stdio sessions.

Full Release Notes

## [4.21.1](https://github.com/punkpeye/fastmcp/compare/v4.21.0...v4.21.1) (2026-09-25)


### Bug Fixes

* answer -32602 when prompts/get names an unknown prompt ([33caed8](https://github.com/punkpeye/fastmcp/commit/33caed8b8bbf7df2bf8287e81e57b417ecc971de))
* apply canAccess to stdio sessions that have auth ([5095511](https://github.com/punkpeye/fastmcp/commit/50955115b62db47699b1a9ee4958e0be93149218))
* **cli:** stop validate hanging on a server that starts when imported ([2c67be9](https://github.com/punkpeye/fastmcp/commit/2c67be91d0c33daf750d4d0355843a1f7d9cc40b))
* **cli:** type-check validate targets with their project's tsconfig ([8bf56bf](https://github.com/punkpeye/fastmcp/commit/8bf56bf4d34e4887fe7aba67e09ec7471f6b8d54))

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