v4.16.0

punkpeye/fastmcpv4.16.0Aug 17, 2026by github-actions[bot]

AI Summary

Introduces support for cancellation and timeouts in tool execution by passing an AbortSignal to the execution context.

Key Highlights

  • Pass AbortSignal in tool execution context for cancellation and timeouts

New Features

  • Pass AbortSignal in tool execution context for cancellation and timeouts

Full Release Notes

# [4.16.0](https://github.com/punkpeye/fastmcp/compare/v4.15.3...v4.16.0) (2026-08-17)


### Features

* **core:** pass AbortSignal in tool execution context for cancellation and timeouts ([#328](https://github.com/punkpeye/fastmcp/issues/328)) ([b7dc347](https://github.com/punkpeye/fastmcp/commit/b7dc3476884566d8f3cbc05ac12085e0c24849f3))