This article is contributed. See the original author and article here.

The .NET Azure IoT Hub SDK team released the latest LTS (Long-Term Support) of the device and service SDKs for .NET. This LTS version, tagged lts_2021-2-18, adds bug fixes, some improvements, and new features over the previous LTS (lts_2020-9-23), such as:


– Handle twin failures using AMQP.


– Make the DeviceClient and ModuleClient extensible.


– Install the device chain certificates using the SDK.


– Make DPS class ClientWebSocketChannel disposable.


– Use CultureInvariant for validating device connection string values.


– Reduce memory footprint of CertificateInstaller.


– Add an API to set a callback for receiving C2D.


– Make set desired property update method thread safe.


– Add support for disabling callbacks for properties and methods.


– Expose DTDL model Id property for pnp devices.


– Make payload in the invoke command API optional.


– Add APIs to get attestation mechanism.


– Improved logging for noting when the no-retry policy is enabled, in the MQTT/AMQP/HTTP transport layers, in the HttpRegistryManager, and in the AmqpServiceClient.


 


For detailed list of feature and bug fixes please consult the comparing changes with previous LTS: Comparing lts_2020-9-23…lts_2021-3-18 · Azure/azure-iot-sdk-csharp (github.com)


The following NuGet versions have been marked as LTS.



  • Microsoft.Azure.Devices: 1.31.0

  • Microsoft.Azure.Devices.Client: 1.36.0

  • Microsoft.Azure.Devices.Shared: 1.27.0

  • Microsoft.Azure.Devices.Provisioning.Client: 1.16.3

  • Microsoft.Azure.Devices.Provisioning.Transport.Amqp: 1.13.4

  • Microsoft.Azure.Devices.Provisioning.Transport.Http: 1.12.3

  • Microsoft.Azure.Devices.Provisioning.Transport.Mqtt: 1.14.0

  • Microsoft.Azure.Devices.Provisioning.Security.Tpm: 1.12.3

  • Microsoft.Azure.Devices.Provisioning.Service: 1.16.3


 


More detail on the LTS 2021-03-18 version can be found here.


 


Enjoy this new LTS version.


Eric for the Azure IoT .NET Managed SDK team

Brought to you by Dr. Ware, Microsoft Office 365 Silver Partner, Charleston SC.

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