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title: AWS Request Signature
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# AWS Request Signature

The AWS Request Signature policy signs outgoing requests with AWS Signature Version 4 (SigV4) or Signature Version 4A (SigV4A).

For configuration details, see [AWS Request Signature Policy](https://docs.mulesoft.com/gateway/latest/policies-outbound-aws-signature).

## [](#may-19-2025)May 19, 2025

### What’s New

- AWS Request Signature policy implementation version 1.0.0 is now supported by Omni Gateway.
- AWS Request Signature policy definition version 1.0.0 is now supported by Omni Gateway.