This page describes Cloud SQL's database version support policies.
> [!IMPORTANT]
> **Important:** All Cloud SQL instances that are running community end-of-life (EOL) major versions of PostgreSQL are enrolled in extended support. If your instance is running an EOL major version, then you will be charged for extended support starting on May 1, 2025. For more information about extended support pricing, see [Pricing](https://docs.cloud.google.com/sql/docs/postgres/extended-support.md.txt#pricing).
## Database versions supported by Cloud SQL
The database engines supported by Cloud SQL include multiple versions.
The versions can vary in capabilities and in the types of issues that
arise. While performing an upgrade can impact your users,
providing up-to-date database features and important patches is also critical.
Cloud SQL keeps your instances up-to-date with patches and
minor version updates automatically.
## Major and minor versions supported by Cloud SQL
Cloud SQL supports the following database versions.
| Major version | Minor version | Regular support start date | Extended support start date | Deprecation date |
|---|---|---|---|---|
| PostgreSQL 18 (default) | 18.6 | September 25, 2025 | - | - |
| PostgreSQL 17 | 17.11 | October 22, 2024 | February 1, 2030 | February 1, 2033 |
| PostgreSQL 16 | 16.15 | June 7, 2024 | February 1, 2029 | February 1, 2032 |
| PostgreSQL 15 | 15.19 | May 24, 2023 | February 1, 2028 | February 1, 2031 |
| PostgreSQL 14 | 14.24 | November 11, 2021 | February 1, 2027 | February 1, 2030 |
| PostgreSQL 13 | 13.23 | November 5, 2020 | February 1, 2026 | February 1, 2029 |
| PostgreSQL 12 | 12.22 | May 21, 2020 | February 1, 2025\* | February 1, 2028 |
| PostgreSQL 11 | 11.22 | September 27, 2019 | February 1, 2025\* | February 1, 2028 |
| PostgreSQL 10 | 10.23 | March 27, 2020 | February 1, 2025\* | February 1, 2028 |
| PostgreSQL 9.6 | 9.6.24 | April 1, 2018 | February 1, 2025\* | February 1, 2028 |
\* Starting on May 1, 2025, all instances running on major versions that have reached end of life (EOL) will be charged for extended support. To avoid additional charges for extended support, we recommend that you [upgrade your instance](https://docs.cloud.google.com/sql/docs/postgres/upgrade-major-db-version-inplace.md.txt).
## Cloud SQL database version format
For PostgreSQL 9.6, the first two numbers in the version number form the major
version, and the last number is the minor version. For example, for **version 9.6.1** , Cloud SQL uses
**9.6** as the major version, and **1** as the minor version. For
PostgreSQL 10 and later, the first number is the major version.
For example, for **version 10.1** , **10** is the major version,
and **1** is the minor version.
### How to identify the database version of your Cloud SQL instance
You specify the database version when you create a Cloud SQL instance.
If you don't specify a database version, then Cloud SQL uses the default
database version.
To view the database version of a Cloud SQL instance, do the following:
1. In the Google Cloud console, go to the **Cloud SQL Instances** page.
[Go to Cloud SQL Instances](https://console.cloud.google.com/sql)
2. To open the **Overview** page of an instance, click the instance name.
3. In the **Configuration** card, view the **Database version**.
To filter instances by a specific database version within your Cloud SQL project, do the following:
1. In the Google Cloud console, go to the **Cloud SQL Instances** page.
[Go to Cloud SQL Instances](https://console.cloud.google.com/sql)
2. In the **Filter** field, select **Type**. The database versions that are within your project are listed.
3. To filter the instances, select a database version within your project.
To view all Cloud SQL instances and their database versions in your organization,
use [Database Center](https://docs.cloud.google.com/database-center/docs/overview.md.txt).
You can also switch views in Database Center from project
to folders or organizations to get a complete list of all your
Cloud SQL instances.
For more information, see
[Filter resources and export fleet inventory information](https://docs.cloud.google.com/database-center/docs/filter-resources-export-fleet-inventory-information.md.txt).
## Major version lifecycle
This section describes the support lifecycle for major versions in Cloud SQL.
### Regular support
Cloud SQL supports new major versions within 90 days of their general availability release by the database engine developer community. The first phase of this support is regular support. During regular support, Cloud SQL provides minor version and maintenance updates for the database engine. Cloud SQL also applies security fixes to the instances. Cloud SQL offers regular support for a major version as long as the database engine developer community supports the major version. After the major version reaches end-of-life (EOL) by the community, the major version enters extended support in Cloud SQL.
### Extended support
For Cloud SQL for PostgreSQL
major versions that have
reached their EOL, Cloud SQL offers extended
support. Extended support lets you continue running your Cloud SQL
instances for three years even after the developer community stops supporting
the major versions on which the instances are running. Extended support
is offered for three years.
You can use this time to plan, test, and perform the upgrade of your instances
to a major version that is in regular support. For more information about
performing a major version upgrade, see
[Upgrade the database major version in-place](https://docs.cloud.google.com/sql/docs/postgres/upgrade-major-db-version-inplace.md.txt)
and [Upgrade the database major version by migrating data](https://docs.cloud.google.com/sql/docs/postgres/upgrade-major-db-version-migrate.md.txt).
For more information about
extended support, see [Extended support in Cloud SQL](https://docs.cloud.google.com/sql/docs/postgres/extended-support.md.txt).
### Deprecation
After extended support has ended for a specific major version, Cloud SQL
deprecates the major version. An instance running on a deprecated major version is
upgraded to the default major and minor version for the database engine
automatically. Cloud SQL sends a deprecation notice to project
owners at least 12 months before the deprecation date.
For Cloud SQL for PostgreSQL
major versions, project owners receive a deprecation notice
at the end of the second year of extended support.
## Minor version support
Cloud SQL supports new minor versions within 30 days of their general availability release by the database engine developer community. After Cloud SQL supports a new minor version, Cloud SQL provisions new instances on the new version automatically. During the next scheduled maintenance rollout, Cloud SQL upgrades existing instances to the new version.
Cloud SQL determines the target minor version for each database engine.
When the target minor version is different from the minor version for a
Cloud SQL instance, Cloud SQL upgrades that version during
the next maintenance cycle. You can control the day and time when maintenance
restarts occur by
[setting a maintenance window](https://docs.cloud.google.com/sql/docs/postgres/set-maintenance-window.md.txt)
for your instance.
> [!NOTE]
> **Note:** Cloud SQL might not support each new minor version released by the database engine developer. For example, Cloud SQL might not support a minor version that's found not to work well with Cloud SQL.