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title: A2A v1 to v0.3 Transcoder Policy
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# A2A v1 to v0.3 Transcoder Policy

The A2A v1 to v0.3 Transcoder Policy policy transcodes protocol messages bidirectionally between A2A v1.0 JSON-RPC clients and A2A v0.3 backend servers.

For configuration details, see [A2A v1 to v0.3 Transcoder Policy](https://docs.mulesoft.com/gateway/latest/policies-outbound-a2a-v1-to-v03-transcoder).

## [](#july-15-2026)July 15, 2026

### What’s New

- A2A v1 to v0.3 Transcoder policy implementation version 1.0.0 is now supported by Omni Gateway.
- A2A v1 to v0.3 Transcoder policy definition version 1.0.0 is now supported by Omni Gateway.