---
title: AssemblyScript SDK 0.2.0
summary: null
url: >-
  https://www.fastly.com/documentation/reference/changes/2021/01/assemblyscript-sdk-0.2.0
---

## Changed

- Converted the API so that all the appropriate properties calls are ES Getter/Setter functions, to more closely match the Fetch API.
- Improved our WriteableStreams and ReadableStreams API, to improve their locks, and more closely match the Fetch API.

## Added

- Updated the package to use AssemblyScript `0.17.x`.
- Updated the package to use @fastly/as-fetch `0.2.0`.
- Added a new link to the new Reference Documentation page in the README.
- Added a link to this CHANGELOG in the README.