GCP Release Notes: January 14, 2026

Container Optimized OS

Change

cos-125-19216-104-95

Kernel	Docker	Containerd	GPU Drivers
COS-6.12.55	v27.5.1	v2.1.5	See List

Security

Fixed CVE-2025-40350 in the Linux kernel.

Security

Fixed CVE-2025-68764 in the Linux kernel.

Security

Fixed CVE-2025-68758 in the Linux kernel.

Security

Fixed CVE-2025-68766 in the Linux kernel.

Security

Fixed CVE-2025-68763 in the Linux kernel.

Security

Fixed CVE-2025-40350 in the Linux kernel.

Security

Fixed CVE-2025-68756 in the Linux kernel.

Security

Fixed CVE-2025-40350 in the Linux kernel.

Change

Runtime sysctl changes:

• Changed: net.ipv4.udp_mem: 188034 250714 376068 -> 188034 250715 376068

Security

Fixed CVE-2025-68329 in the Linux kernel.

Change

cos-121-18867-294-78

Kernel	Docker	Containerd	GPU Drivers
COS-6.6.113	v27.5.1	v2.0.7	See List

Security

Fixed CVE-2025-40350 in the Linux kernel.

Security

Fixed CVE-2025-40350 in the Linux kernel.

Security

Fixed CVE-2025-40350 in the Linux kernel.

Change

Runtime sysctl changes:

• Changed: net.ipv4.tcp_mem: 94044 125392 188088 -> 94041 125391 188082
• Changed: net.ipv4.udp_mem: 188088 250784 376176 -> 188085 250783 376170

Change

cos-117-18613-439-82

Kernel	Docker	Containerd	GPU Drivers
COS-6.6.111	v24.0.9	v1.7.29	See List

Fixed

Added bcache clock cache replacement policy.

Google SecOps Marketplace

Change

Azure Active Directory: Version 20.0

• Updated the action to include the email ID in the action output and expanded capabilities to return all metadata fields in the following action:

  • Get Manager Contact Details

• Integration: Updated the code to handle special characters in identifiers by implementing URL encoding and OData escaping.

Change

Slack: Version 26.0

• Updated the Base URL construction logic for the following action:

  • Build Block

Change

Okta: Version 12.0

• Updated the pagination processing mechanismthe in following action:

  • List Users

Change

Microsoft Graph Mail Delegated: Version 12.0

• Improved the “mark emails as read” functionality in the following connector:

  • Microsoft Graph Mail Delegated Connector

Change

Microsoft Graph Mail: Version 35.0

• Improved the “mark emails as read” functionality in the following connector:

  • Microsoft Graph Mail Connector

Change

Siemplify: Version 100.0

• Updated the following action to include the JSON result in the action output:

  • Get Custom Field Values

Looker

Feature

Looker (Google Cloud core) is now available in the asia-southeast3 (Bangkok) region. For more information, see the Looker (Google Cloud core) locations documentation.

Storage Transfer Service

Feature

Storage Transfer Service event-driven transfers are now available for Azure Blob Storage and Data Lake Storage Gen2 sources. Event-driven transfers listen to Azure Event Grid notifications via Azure Storage Queues to automatically transfer new or updated objects from your Azure container to Cloud Storage.

For more information, see Event-driven transfers from Azure Blob Storage or Data Lake Storage Gen2.

Tools for PowerShell

Deprecated

Effective immediately, Cloud Tools for PowerShell is deprecated and can no longer be installed using the Google Cloud CLI. For more information, see Cloud Tools for PowerShell deprecation.

Source: Google Cloud Platform