You can now migrate a subset of databases from an external server to a destination Cloud SQL for MySQL instance.

For more information, see Configure Cloud SQL and the external server for replication.

Cloud SQL for MySQL 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 MySQL overview.

MySQL 8.0.44 is now the default minor version for Cloud SQL for MySQL 8.0.

For more information about minor version support in Cloud SQL for MySQL, see MySQL 8.0.

Cloud SQL for MySQL now supports minor version 8.0.45. To upgrade your existing instance to the new minor version, see Upgrade the database minor version.

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.

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.

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

Cloud SQL for MySQL 8.4.7 is upgraded to MySQL 8.4.8. For more information, see the MySQL 8.4.8 Release Notes.

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.

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

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

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.

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.

Model endpoint management for Cloud SQL for MySQL and the integration of Cloud SQL for MySQL with Vertex AI are now generally available (GA).

By integrating your Cloud SQL for MySQL instance with Vertex AI, you can invoke online predictions and generate vector embeddings from models hosted in Vertex AI directly from your Cloud SQL instance.

With model endpoint management, you can build generative AI applications by integrating your databases with models from third-party providers like OpenAI using your own API keys. Model endpoint management lets you register and manage model endpoints for your MySQL instance, making your interactions with a wider range of ML models seamless.

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.

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.

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.

Cloud SQL for MySQL now supports performance capture to help you diagnose transient performance issues with your MySQL database. Performance capture lets you specify configurable thresholds for additional monitoring. If a threshold is reached, then performance capture takes snapshots of the database state, including in-flight transactions, InnoDB status, and, in the case of replication lag, detailed replication status. Performance capture outputs the snapshots in a log format so you can review the state of the instance when the problem occurred.

For more information, see Cloud SQL performance capture overview. Performance capture is in Preview.

Cloud SQL for MySQL 8.0.43 is now the default minor version of Cloud SQL for MySQL 8.0.

If you have automatic minor version upgrade enabled for your instance, then your instance is upgraded to the default minor version automatically during its regularly scheduled maintenance update.

For more information about automatic minor version upgrade, see Upgrade the database minor version of MySQL 8.0.

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

For more information, see Clone an instance.

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.

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.

To help prevent out-of-memory (OOM) events, you can enable managed buffer pool for Cloud SQL for MySQL 8.0 and later instances. When you enable managed buffer pool, Cloud SQL reduces the value of the innodb_buffer_pool_size configuration and frees up memory when memory usage is high, and the instance is in danger of an OOM event. After memory usage stabilizes at a lower value, MySQL increases the value of innodb_buffer_pool_size incrementally to its original value.

To enable managed buffer pool, your Cloud SQL instance must use a maintenance version of [$MYSQL_VERSION].R20251004.01_07 or later. You can't enable managed buffer pool for instances that use a shared core or for instances that are running MySQL 5.6 or MySQL 5.7.

For more information, see Enable managed buffer pool. Support for managed buffer pool is in Preview.

Cloud SQL for MySQL 8.4.6 is upgraded to MySQL 8.4.7. For more information, see the MySQL 8.4.7 Release Notes.

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.

Cloud SQL for MySQL 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

Cloud SQL for MySQL now lets you have more control over the number of results that are returned when you perform an ANN vector search with filters. You can use iterative filtering when the selective filters of the WHERE clause in your ANN search query produce fewer results than the number of results specified in your LIMIT clause.

To enable iterative filtering for your ANN search query, set the cloudsql_vector_iterative_filtering flag to ON. You can set the flag at a session or global level.

To enable and use iterative filtering for your ANN search query, you must have [MYSQL_$VERSION].R20251004.01_07 or later installed on your MySQL instance.

For more information, see Search approximate nearest neighbors (ANN).

Cloud SQL for MySQL now supports minor version 8.0.44. To upgrade your existing instance to the new version, see Upgrade the database minor version.

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.

Cloud SQL now supports the automatic minor version upgrade for Cloud SQL for MySQL 8.0.35 or later instances. If your Cloud SQL for MySQL instance is running MySQL 8.0.35 or later, but you didn't select a specific minor version when you created the instance (databaseVersion=MYSQL_8_0), then your MySQL instance is upgraded automatically to the default minor version of Cloud SQL for MySQL 8.0 during its regular scheduled maintenance update.

All eligible Cloud SQL for MySQL instances receive the first automatic minor version upgrade during the rollout of MYSQL_8_0_[N].R20251004.01_07.

Cloud SQL has enhanced the optimized writes feature, which includes an improved crash recovery algorithm to reduce crash recovery time and utilizes unused disk I/O throughput adaptively to accelerate buffer pool warm-up. The optimized writes feature provides a set of write performance improvements that adjust MySQL configurations dynamically based on workload demand and underlying infrastructure.

By default these improvements are enabled for all new Cloud SQL Enterprise Plus edition instances that you create or that you upgrade to from Cloud SQL Enterprise edition.

For more information about optimized writes, see Configure database flags.