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Release: AWS IoT Greengrass Core v2.17.0 software update on April 16, 2026 - AWS IoT Greengrass
Public component updates

Release: AWS IoT Greengrass Core v2.17.0 software update on April 16, 2026

This release provides version 2.17.0 of the Greengrass nucleus component, version 2.5.0 of the Greengrass nucleus lite component, and updates to AWS-provided components.

Release date: April 16, 2026

Public component updates

The following table lists components provided by AWS that include new and updated features.

Important

When you deploy a component, AWS IoT Greengrass installs the latest supported versions of all of that component's dependencies. Because of this, new patch versions of AWS-provided public components might be automatically deployed to your core devices if you add new devices to a thing group, or you update the deployment that targets those devices. Some automatic updates, such as a nucleus update, can cause your devices to restart unexpectedly.

To prevent unintended updates for a component that is running on your device, we recommend that you directly include your preferred version of that component when you create a deployment. For more information about update behavior for AWS IoT Greengrass Core software, see Update the AWS IoT Greengrass Core software (OTA).

Component Details

Greengrass nucleus

Version 2.17.0 of the Greengrass nucleus is available.

New features

  • Installs all Amazon Root CA certificates during auto-provisioning.

  • Adds an uninstall lifecycle that runs when a deployment removes a component.

  • Allows installing Greengrass Core software as a regular Linux user.

Greengrass nucleus lite

Version 2.5.0 of the Greengrass nucleus lite is available.

New features

  • Adds PKCS#11 support via OpenSSL Providers.

  • Adds support for using TPM with fleet provisioning.

Stream manager

Version 2.3.0 of the stream manager is available.

Bug fixes and improvements

  • Updates to the AWS SDK for Java v2 for improved performance and compatibility.

  • Changes proxy precedence behavior to align with standard AWS SDK proxy configuration.

Greengrass CLI

Version 2.17.0 of the Greengrass CLI is available.

Updates the component version for the Greengrass nucleus v2.17.0 release.

Secure tunneling

Version 2.0.0 of the secure tunneling component is available.

New features

  • Replaces the Java wrapper with a C wrapper.

  • Replaces AWS IoT Device Client with AWS IoT Securetunneling Localproxy.

  • Reduces the binary size from approximately 36 MB to approximately 4 MB.

  • Reduces the memory footprint from approximately 100 MB to approximately 2 MB.