Change

The command for upgrading Cloud SQL instances to the new network architecture has been re-enabled.

For more information, see Upgrade an instance to the new network architecture.

Feature

Cloud SQL for PostgreSQL now supports regional endpoints for the Cloud SQL Admin API. This feature lets you direct your API calls to a region-specific endpoint. Using a regional endpoint enhances data locality and helps meet strict compliance expectations. For more information, see Cloud SQL regional endpoints.

This feature is in Preview.

Fixed

Cloud SQL has made the following enhancements to expand the list of eligible Cloud SQL Enterprise Plus edition instances that support planned operations with near-zero downtime.

• Instances with connector enforcement enabled are eligible for planned operations with near-zero downtime.
• Instances that use private services access with a non-RFC 1918 IP address are eligible for planned operations with near-zero downtime.

Feature

The cloudsql_session_read_only session parameter provides a robust, non-circumventable mechanism in Cloud SQL for PostgreSQL for preventing data modification during a session. You can use this flag to either make a session temporarily read-only, or make a session permanently, irreversibly read-only.

For more information, see Create a read-only session in Cloud SQL for PostgreSQL.

Fixed

Removed a query insights limitation for Cloud SQL Enterprise Plus edition and Cloud SQL Enterprise edition instances that use PostgreSQL 18.

Instances using PostgreSQL maintenance version 20260319.00_RC02 or any later version now store application tags when using query insights even if a query has comment tags before the start of a SQL statement.

Feature

Database Migration Service quick-start migrations are now integrated into Cloud SQL for PostgreSQL to provide a lightweight, continuous migration flow. This feature automates setup for sources with private IPs in a VPC network, including Cloud SQL for PostgreSQL instances and self-managed databases on Compute Engine.

For more information, see Quick-start migrations overview in the Database Migration Service documentation. This feature is in Preview.

Feature

You can use the Database Insights remote MCP server to analyze Cloud SQL for PostgreSQL's performance and system metrics. This feature is in GA.

Feature

Newly created Cloud SQL instances are integrating with Knowledge Catalog (formerly Dataplex Universal Catalog) for data discovery. Instances on PostgreSQL version 14.0 or later will have updates sent to Knowledge Catalog in near real-time. As part of this automatic enablement, we will send metadata to Knowledge Catalog. You can verify if your instance is enabled for integration with Knowledge Catalog by looking at the configuration pane in the Knowledge Catalog console. If you don't want your instance to be integrated with Knowledge Catalog, you can turn off this feature.

For more information, see Near real-time.

Feature

The Cloud SQL remote MCP server is generally available (GA). The Cloud SQL remote MCP server lets you interact easily with Cloud SQL instances from LLMs, AI applications, and AI-enabled development platforms.

Feature

You can use DNS automation on Cloud SQL instances where Private Service Connect is enabled to provision and manage per-instance DNS records automatically. On Enterprise Plus edition instances where DNS automation is enabled, you can also enable a global write endpoint DNS that automatically resolves to your current primary instance.

This feature is in Preview.

Breaking

As of April 10, 2026, you can create, run, and edit Gemini Cloud Assist investigations only if you have a Premium Support contract. You can use Gemini Cloud Assist investigations to monitor and troubleshoot your Cloud SQL instance with AI assistance.

If you ran an investigation prior to April 10, 2026, then the results of the investigation continue to be available to you in the Google Cloud console.

Feature

If the storage capacity of a Cloud SQL instance is larger than your application needs, then you can manually reduce, or shrink, your storage capacity to a smaller size.

Depending on underlying disk size, storage shrink operations might incur considerable downtime. If your instance requires limited downtime, rather than using storage shrink capabilities, we recommend migrating your data to a new, smaller instance using Database Migration Service.

For more information, see About storage shrink.

Feature

The QueryData tool lets you to query the data in your database using conversational language and build data agents. For more information, see QueryData tool overview. This feature is available in (Preview).

The preview release increases the accuracy of SQL generation with value search queries which match values and their context within a database. Value search queries trigger automatically.

Feature

Cloud SQL for PostgreSQL now offers conversational analytics, which lets users query their operational data using natural language. This feature is powered by the Conversational Analytics API, which can help you translate complex human dialog into precise database queries to provide actionable insights. This feature is in Preview. For more information, see Conversational analytics for Cloud SQL for PostgreSQL overview.

Breaking

Vector assist (Preview) is temporarily disabled for all Cloud SQL for PostgreSQL instances.

Feature

You can now cancel an in-place major version upgrade operation during the main upgrade phase, when the upgrade is actually being performed.

For more information, see Cancel the major version upgrade.

Feature

Multi-region backup vaults for Cloud SQL enhanced backups are generally available (GA).

This feature lets you store your backup data in multi-region storage locations, providing higher availability and protection against regional outages.

For more information, see Enhanced backups.

Feature

Cloud SQL supports cross-project PITR operations for instances protected by backup and DR (GA).

This feature lets you restore a Cloud SQL instance to a project other than the project where either the source instance or the backup vault is located.

For more information, see Perform a cross-project PITR.

Feature

You can now enable automatic server certificate rotation for your Cloud SQL instance. This feature is specifically designed for instances utilizing the Certificate Authority Service (CAS). Automatic server certificate rotation helps you maintain high security standards while removing the operational burden of manual rotation.

For more information about enabling automatic server certificate rotation for your instance, see Enable automatic server certificate rotation.

Feature

You can now execute SQL statements using the Cloud SQL Data API for administrative queries.

Feature

It now takes less time to create a Cloud SQL instance when point-in-time recovery (PITR) is enabled, as it is by default in the Google Cloud console. During instance creation, PITR now initially uses an instant snapshot instead of a standard backup. and then later converts the snapshot to a standard backup in the background to support restore operations.

Feature

Gemini Cloud Assist investigation capabilities are now supported in Cloud SQL for PostgreSQL (Preview).

For more information, see Troubleshoot slow queries with AI assistance.

Feature

Cloud SQL now provides brute-force detection and protection for your Cloud SQL instances. This helps protect your instances from brute-force access attempts by identifying the source and mitigating the risk caused by these attempts. For more information, see Use brute-force protection.

Change

After March 17, 2026, when you enable the Cloud SQL Admin API (sqladmin.googleapis.com)`, the Cloud SQL remote MCP server is enabled automatically.

The Cloud SQL remote MCP server is in Preview.

Deprecated

Control of MCP use with organization policies is deprecated. After March 17, 2026, organization policies that use the gcp.managed.allowedMCPServices constraint won't work, and you can control MCP use with IAM deny policies. For more information about controlling MCP use, see Control MCP use with IAM.

Announcement

New best practices are available for securing generative AI agents using Model Context Protocol (MCP) with Google Cloud databases. This guide covers key security measures like least privilege, native database controls, and secure agent design to help you build safer AI applications. For more information, see Best practices for securing agent interactions with Model Context Protocol.

Feature

You can now use the Cloud SQL remote MCP server. The Cloud SQL remote MCP server lets you interact easily with Cloud SQL instances from LLMs, AI applications, and AI-enabled development platforms.

This feature is in Preview.

Feature

You can now update the server certificate authority (CA) mode of an existing Cloud SQL instance. You can update existing instances that use the per-instance CA option (GOOGLE_MANAGED_INTERNAL_CA) to use the shared CA option (GOOGLE_MANAGED_CAS_CA) or the customer-managed CA option (CUSTOMER_MANAGED_CAS_CA).

For more information about the different server CA mode options, see Certificate authority (CA) hierarchies.

Feature

You can now assign database roles to built-in database users and IAM database users when you create or update users. For more information about assigning roles, see built-in database authentication or IAM database authentication.

Feature

Cloud SQL for PostgreSQL now supports fast clone operations within the same zone (GA).

For more information, see Clone an instance.

Feature

You can build data agents that interact with the data in your database using conversational language. Use these data agents as tools to empower your applications. For more information, see Data agents overview. This feature is available in Preview, and access to it requires a sign-up.

Feature

Cloud SQL enhanced backups are now generally available (GA).

With enhanced backups, backups are managed and stored in a centralized backup management project that leverages the Backup and DR service, and provides enforced retention, granular scheduling, and longer retention.

Enhanced backups now also support point-in-time-recovery (PITR) after instance deletion.

For more information about the available options and their limitations, see Backup options. For more information about enhanced backups pricing, see Backup and DR pricing.

Feature

PostgreSQL version 18 is now generally available for Cloud SQL for PostgreSQL.

You can now use Database Migration Service with Cloud SQL for PostgreSQL when using PostgreSQL version 18.

To upgrade your instance to PostgreSQL 18, see Upgrade the database major version in-place.

The following extensions are also now available for PostgreSQL 18:

• pg_hint_plan
• pgrouting
• anonymizer
• pg_wait_sampling
• tds_fdw
• plpgsql_check

For more information about these extensions, see Configure PostgreSQL extensions.

Feature

Cloud SQL for PostgreSQL now supports Vector assist (Preview).

Vector assist is a Cloud SQL for PostgreSQL extension that simplifies the deployment and management of your Cloud SQL vector workloads. It helps you set up production-ready vector search capabilities, such as embedding generation, query optimization, and index creation.

For more information about vector assist, how it works, and its limitations, see Vector assist overview.

Feature

The rollout of the following minor version and extension upgrades is complete:

Minor versions

• 13.22 is upgraded to 13.23.
• 14.19 is upgraded to 14.20.
• 15.14 is upgraded to 15.15.
• 16.10 is upgraded to 16.11.
• 17.6 is upgraded to 17.7.
• 18 is upgraded to 18.1.

Extensions

• Pgvector is upgraded from 0.8.0 to 0.8.1.

To use these versions of the extensions and plugins, update your instance to [PostgreSQL version].R20251004.01_19.

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.

Feature

Cloud SQL now offers a free trial instance for both existing and new Google Cloud customers. A free trial instance lets you test advanced Cloud SQL capabilities and features for up to 30 days without any financial commitment.

For information about a free trial instance, and its inclusions and conditions, see Free trial instance overview.

Feature

Cloud SQL for PostgreSQL now supports read pool autoscaling (GA), which helps you more easily manage your application's workload needs.

This feature automates read pool scale in and scale out operations based on one or both of the following conditions:

• Allowed CPU usage of the read pool
• Allowed number of client connections to the read pool

Feature

The rollout of the following extension versions, plugin versions, and extension support is underway:

Extensions and plugins

• plpgsql_check is upgraded from 2.8.1 to 2.8.3 for PostgreSQL versions 14 and later.
• pg_wait_sampling is upgraded from 1.1.6 to 1.1.9 for PostgreSQL versions 13 and later.
• tds_fdw is upgraded from 2.0.4 to 2.0.5.

The following extensions are available for PostgreSQL 18:

• anon
• pg_hint_plan
• pg_wait_sampling
• plpgsql_check
• tds_fdw

To use these versions of the extensions and plugins, update your instance to [PostgreSQL version].R20251004.01_14.

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.