---
title: JavaScript SDK 3.18.1
summary: null
url: >-
  https://www.fastly.com/documentation/reference/changes/2024/07/javascript-sdk-3.18.1
---

## Fixed

- add type definitions of Performance APIs ([#841](https://github.com/fastly/js-compute-runtime/issues/841)) ([fd95aae](https://github.com/fastly/js-compute-runtime/commit/fd95aaecc5a264860845740a3b60d4a7aa75c578))