# 🚨Deprecated 🚨

## We are announcing the deprecation of the utpm-c library support and DPS-TPM authentication support within the Azure IoT C-SDK. Starting May 2023, Microsoft will not provide support for this library. Existing applications using this library will continue to work as-is. We strongly recommend switching to DPS-X509 authentication using the [tpm2tss OpenSSL Engine](https://github.com/Azure/azure-iot-sdk-c/blob/main/iothub_client/devdoc/iothubclient_c_library.md#openssl-engine-examples)

## Contributing

This project has adopted the [Microsoft Open Source Code of Conduct](https://opensource.microsoft.com/codeofconduct/). For more information see the [Code of Conduct FAQ](https://opensource.microsoft.com/codeofconduct/faq/) or contact [opencode@microsoft.com](mailto:opencode@microsoft.com) with any additional questions or comments.
