# What changed in @aws-sdk/s3-request-presigner

> 1 change in @aws-sdk/s3-request-presigner 3 from its official release notes, upgrade guides and advisories: 1 new APIs and options. Each one cited. Sources checked 2026-10-27. HTML: https://unstale.sh/npm/@aws-sdk/s3-request-presigner/

To see which of these apply to a repository, run `npx @unstale/cli init` in it.

## @aws-sdk/s3-request-presigner 3

### New APIs and options

- Clients allow protocol selection by class constructor. (3.953.0) — [release notes](https://github.com/aws/aws-sdk-js-v3/blob/3ce8aa778c22193dad5f7fcefe239e3a74a3cd4f/packages/s3-request-presigner/CHANGELOG.md#39530-2025-12-16)