GCP Release Notes: September 25, 2025

Cloud SQL for MySQL

Feature

Cloud SQL for MySQL now supports minor version 8.0.43. To upgrade your existing instance to the new version, see Upgrade the database minor version.

Cloud SQL for PostgreSQL

Feature

Cloud SQL Managed Connection Pooling is now generally available (GA). Managed Connection Pooling lets you scale your workloads by optimizing resource utilization for Cloud SQL instances using pooling. You can now also use IAM authentication to secure connections when using Managed Connection Pooling.

For more information, see Managed Connection Pooling overview.

Cloud Service Mesh

Deprecated

Support for the following features will end on March 17, 2027:

• GKE on AWS
• GKE on Azure
• EKS Attached Clusters on AWS
• Azure Attached Clusters with AKS

Note that there are no changes to the other features of GKE attached clusters or Google Distributed Cloud (software only or air-gapped),

You must migrate to an alternative service mesh solution or an alternative Istio-based solution using your existing CSM configuration files by March 17, 2027.

Generative AI on Vertex AI

Announcement

New preview models for Gemini 2.5 Flash and 2.5 Flash-Lite are now available. These models are available at the following versioned endpoints:

• gemini-2.5-flash-preview-09-2025
• gemini-2.5-flash-lite-preview-09-2025

Spanner

Feature

The Cassandra interface for Spanner is now generally available. The Cassandra interface lets you take advantage of Spanner’s fully managed, scalable, and highly available infrastructure using familiar Cassandra tools and syntax. For more information, see Cassandra interface, Migrate from Cassandra to Spanner, and Connect to Spanner using the Cassandra interface.

Source: Google Cloud Platform