# Release: AWS IoT Greengrass Core v2.9.1 software update on November 18, 2022
<a name="greengrass-release-2022-11-18"></a>

This release provides version 2.9.1 of the Greengrass nucleus component and updates to AWS-provided components.

**Release date:** November 18, 2022

**Release highlights**
+ **Log manager** – Log manager now processes and directly uploads active log files instead of waiting for new files to be rotated. This improvement significantly reduces log delays. For more information, see [Log manager](https://docs.aws.amazon.com/greengrass/v2/developerguide/log-manager-component.html)

**Topics**
+ [Public component updates](#greengrass-2022-11-18-components)

## Public component updates
<a name="greengrass-2022-11-18-components"></a>

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

**Important**  <a name="component-patch-update-note"></a>
<a name="component-patch-update"></a>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.   
<a name="component-version-pinning"></a>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](create-deployments.md). For more information about update behavior for AWS IoT Greengrass Core software, see [Update the AWS IoT Greengrass Core software (OTA)](update-greengrass-core-v2.md).


| **Component** | **Details** | 
| --- | --- | 
| Greengrass nucleus | Version 2.9.1 of the [Greengrass nucleus](greengrass-nucleus-component.md) is available.<a name="changelog-nucleus-2.9.1"></a>[See the AWS documentation website for more details](http://docs.aws.amazon.com/greengrass/v2/developerguide/greengrass-release-2022-11-18.html) | 
| Log manager | Version 2.3.0 of the new [log manager](log-manager-component.md) is available. We recommend that you upgrade to Greengrass nucleus 2.9.1 when you upgrade to log manager 2.3.0. <br /><a name="changelog-log-manager-2.3.0"></a>[See the AWS documentation website for more details](http://docs.aws.amazon.com/greengrass/v2/developerguide/greengrass-release-2022-11-18.html) |