Google Cloud Update Version May 26, 2026

May 26, 2026 Google Cloud release notes cover new GA features across BigQuery, Cloud Trace, Cloud CDN, Cloud Load Balancing, Gemini Enterprise, and GKE, plus COS security updates. Notable items include `Google Cloud CCaaS 4.35`, `cos-129-19506-120-115`, `cos-125-19216-395-47`, `cos-121-18867-381-144`, and `cos-117-18613-613-25`.

• Container Optimized OS updates include security patches for multiple Linux kernel CVEs, dev-python/urllib3 CVE-2026-44431, dev-libs/libxml2 CVE-2026-6732, and dev-lang/go / net-misc/curl vulnerability fixes.
• COS fixes an EFI variable out-of-bounds read in GRUB config parsing and a KCTF-9e6bf14 Linux kernel issue.
• COS updates package versions to latest patch releases to address known CVEs and improve security hardening.

• COS fixes a GRUB2 crash when using configfile or source commands with Secure Boot enabled.
• COS fixes a rare ext4 online resize race condition that could prevent machines from booting.
• Google Cloud CCaaS 4.35 fixes multiple agent desktop, call handling, transcription, reporting, CRM, and chat workflow issues.
• Cloud Trace adds trace spans for remote MCP server tools/call operations to improve agent behavior analysis.

• Data Science Agent for Colab Enterprise and BigQuery is generally available.
• Cloud CDN cache policies can now be configured at URL map levels for global external Application Load Balancers.
• Frontend configuration for incoming IPv6 traffic is supported in Preview for several regional and cross-region load balancers.
• Cloud Trace Observability Analytics is generally available for SQL-based trace analysis.
• Observability API is generally available for configuring trace storage, encryption, scopes, and linked BigQuery datasets.
• Trace scopes are generally available.
• Gemini Enterprise adds Google Sites data store filters in Preview.
• Gemini Enterprise adds PagerDuty data store support in Preview.
• Gemini Enterprise administrators can control Gemini 3.5 Flash visibility until June 8, 2026.
• Agent Platform Sandboxes add computer use, custom container sandboxes, sandbox templates, and sandbox snapshots in Preview.
• Gemini Deep Research Agent is available in Preview.
• Cloud Storage FUSE CSI driver is now supported for GKE Dedicated clusters and node pools on GKE 1.36.0-gke.1266000 and later.

• COS entries list kernel, Docker, and containerd versions for each build; verify compatibility before upgrading.
• Cloud Storage FUSE CSI driver on GKE Dedicated clusters requires the custom-endpoint mount option via gcsfuse CLI or configuration file.
• Vertex AI Extensions is deprecated and will be shut down after 2026-11-26; migrate to Agent Platform.
• Gemini Enterprise assist is deprecated and shut down.
• The Gemini 3.5 Flash feature management toggle will be removed after 2026-06-08 and the feature will be enabled by default.
• Google Cloud CCaaS 4.35 rollout timing depends on the instance deployment schedule.

• Google Cloud release notes
  https://cloud.google.com/release-notes

Product Information

Vendor: Google

Product: Cloud

Version: May 26, 2026

Release date: May 26, 2026