GCP Release Notes: September 17, 2025

Cloud Load Balancing

Security

A security fix was made which changes the behavior of requests and responses sent with the Transfer-Encoding: Chunked header to be more RFC 9112 compliant. The RFC states that both the chunked_body and the last-chunk fields must end in CRLF. This is now enforced.

Cloud SQL for PostgreSQL

Feature

The rollout of the following minor version upgrades is complete:

Minor versions

• 13.21 is upgraded to 13.22.
• 14.18 is upgraded to 14.19.
• 15.13 is upgraded to 15.14.
• 16.9 is upgraded to 16.10.
• 17.5 is upgraded to 17.6.

Cloud SQL for PostgreSQL adds support for the following extensions:

Extensions

• plpgsql_check 2.8 is available for PostgreSQL version 14 and later.
• roaringbitmap 0.5 is available for PostgreSQL version 12 and later.

To use these minor versions and the new extensions, update your instance to [PostgreSQL version].R20250727.00_23.

If you use a maintenance window, then the updates to the minor, extension, and plugin versions happen according to the timeframe that you set in the window. Otherwise, the updates occur within the next few weeks.

For more information on checking your maintenance version, see Self-service maintenance. To find your maintenance window or to manage maintenance updates, see Find and set maintenance windows.

Cloud Service Mesh

Announcement

The following rollouts have completed for managed Cloud Service Mesh:

• 1.21.5-asm.55 has rolled out to the rapid release channel.
• 1.20.8-asm.48 has rolled out to the regular release channel.
• 1.19.10-asm.48 has rolled out to the stable release channel.

While the managed data plane automatically updates Envoy Proxies by restarting workloads, you must manually restart any StatefulSets and Jobs.

Cloud Storage

Feature

The bucket_attributes_view and bucket_attributes_latest_snapshot_view tables in Storage Insights datasets are updated with two new fields: objectCount and totalSize. objectCount reflects the total number of objects in the bucket and totalSize reflects the total size of the bucket in bytes. The tables are automatically updated with the new fields in all existing datasets and are included in all new dataset configurations.

Compute Engine

Changed

Compute Engine enforces limits to the total baseline performance that a project’s Hyperdisk Balanced and Hyperdisk Balanced High Availability disks that are in the same zone can consume at the same time. The aggregate baseline performance limit is 50 GiB/s of throughput and 500,000 IOPS, and it only applies to baseline performance. For a detailed explanation, see Concurrent consumption limits for baseline performance.

Google Cloud Architecture Center

Feature

(New guide) VPC Network Peering Cross-Cloud Network with NVAs and regional affinity: Describes how to deploy network virtual appliances (NVAs) in a single-region Cross-Cloud Network architecture.

Source: Google Cloud Platform