---
title: Rust SDK 0.11.3
summary: null
url: https://www.fastly.com/documentation/reference/changes/2025/04/rust-sdk-0.11.3
---

- Added experimental support for shielding primitives. See the documentation
  in the `fastly::experimental::shielding` module for more information.
- Fixed small issues in an ACL and a geolocation example, as well as a typo
  in the KV store documentation.
- Expanded and clarified our documentation regarding the validation of server
  certificates using dynamic backends.
- Clarified our documentaton on streaming bodies.
- Added `append_vary` and `push_vary` methods to `CandidateResponse`, and
  add further documentation.
- Code cleanups in the `security` module, including the ability to set the
  buffer size for the inspection server's response (buffer size defaults
  to 16KB).