Supported language runtimes and base images

This page describes the supported language runtimes and base images for deploying services or functions from source, and container images built on scratch.

Base images are composed of an operating system stack and a language runtime:

  • A stack is made up of a Linux distribution version and system packages, such as OpenSSL and curl.
  • A language runtime is the specific version of the programming language used by your application.

Cloud Run supports multiple language runtimes, each of which is available through container base images provided by Google Cloud's buildpacks. Language runtimes are supported only as long as they are supported by their respective open source communities.

It is the developer's responsibility to upgrade services to newer language runtimes before it reaches end of support. Refer to the Cloud Run runtime lifecycle for details.

The Cloud Run lifecycle policy does not apply to containers built outside of Cloud Run.

Using language runtimes

Cloud Run language runtimes are used for the following:

Security and maintenance updates

Security and maintenance updates are available for generally available language runtimes. You can apply these updates automatically or manually depending on how you configure automatic security updates. Automatic security updates are enabled by default when deploying functions and services to Cloud Run.

How to obtain base images

Base images are hosted in every region where Artifact Registry is available.

There are three methods for specifying a base image:

  • RUNTIME_ID: Gives you the base image for the specified language using its default stack. The base image will be taken from a repository in the same REGION where your service is deployed. We recommend you specify the RUNTIME_ID for most cases.
  • STACK/RUNTIME_ID: An alias for the full base image path. The base image will be taken from a repository in the same REGION where your service is deployed. Use this option if you need a specific system package in the stack.
  • REGION-docker.pkg.dev/serverless-runtimes/STACK/runtimes/RUNTIME_ID: The full base image path. Use this option if you want full control over the specific base image and the region where it's downloaded from.

For the three methods for specifying a base image, replace:

  • REGION with the preferred region, for example europe-west1.
  • STACK with the preferred operating system stack, for example google-24-full.
  • RUNTIME_ID with the language runtime ID used by your function, for example nodejs24.

For example, to reference the full base image path for the latest Node.js base image using the google-24-full stack, hosted in europe-west1, use the following URL:

europe-west1-docker.pkg.dev/serverless-runtimes/google-24-full/runtimes/nodejs24

Node.js

Runtime Runtime ID Stacks Runtime base image Deprecation Decommission
Node.js 24 nodejs24
  • google-24 (default)
  • google-24-full
    		•
  • google-24/nodejs24
  • google-24-full/nodejs24
    		•  2028-04-30 2028-10-31
    Node.js 22 nodejs22
  • google-22 (default)
  • google-22-full
    		•
  • google-22/nodejs22
  • google-22-full/nodejs22
    		•  2027-04-30 2027-10-31
    Node.js 20 nodejs20
  • google-22 (default)
  • google-22-full
    		•
  • google-22/nodejs20
  • google-22-full/nodejs20
    		•  2026-04-30 2026-10-30
    Node.js 18 nodejs18
  • google-22 (default)
  • google-22-full
    		•
  • google-22/nodejs18
  • google-22-full/nodejs18
    		•  2025-04-30 2025-10-30
    Node.js 16 nodejs16 google-18-full google-18-full/nodejs16 2024-01-30 2025-01-30
    Node.js 14 nodejs14 google-18-full google-18-full/nodejs14 2024-01-30 2025-01-30
    Node.js 12 nodejs12 google-18-full google-18-full/nodejs12 2024-01-30 2025-01-30
    Node.js 10 nodejs10 google-18-full google-18-full/nodejs10 2024-01-30 2025-01-30
    Node.js 8 nodejs8 Decommissioned Decommissioned 2020-06-05 Feb 2021
    Node.js 6 nodejs6 Decommissioned Decommissioned 2019-04-17 Aug 2020

    Python

    Runtime Runtime ID Stacks Runtime base image Deprecation Decommission
    Python 3.14 python314
  • google-24 (default)
  • google-24-full
    		•
  • google-24/python314
  • google-24-full/python314
    		•  2030-10-10 2031-04-10
    Python 3.13 python313
  • google-22 (default)
  • google-22-full
    		•
  • google-22/python313
  • google-22-full/python313
    		•  2029-10-10 2030-04-10
    Python 3.12 python312
  • google-22 (default)
  • google-22-full
    		•
  • google-22/python312
  • google-22-full/python312
    		•  2028-10-02 2029-04-02
    Python 3.11 python311
  • google-22 (default)
  • google-22-full
    		•
  • google-22/python311
  • google-22-full/python311
    		•  2027-10-24 2028-04-24
    Python 3.10 python310
  • google-22 (default)
  • google-22-full
    		•
  • google-22/python310
  • google-22-full/python310
    		•  2026-10-04 2027-04-04
    Python 3.9 python39 google-18-full google-18-full/python39 2025-10-05 2026-04-05
    Python 3.8 python38 google-18-full google-18-full/python38 2024-10-14 2025-10-14
    Python 3.7 python37 google-18-full google-18-full/python37 2024-01-30 2025-01-30

    Go

    Runtime Runtime ID Stacks Runtime base image Deprecation Decommission
    Go 1.26 go126
  • google-24 (default)
  • google-24-full
    		•
  • google-24/go126
  • google-24-full/go126
    		•
    Go 1.25 go125
  • google-22 (default)
  • google-22-full
    		•
  • google-22/go125
  • google-22-full/go125
    		•
    Go 1.24 go124
  • google-22 (default)
  • google-22-full
    		•
  • google-22/go124
  • google-22-full/go124
    		•  2026-09-02 2027-03-02
    Go 1.23
    		go123
  • google-22 (default)
  • google-22-full
    		•
  • google-22/go123
  • google-22-full/go123
    		•  2026-02-21 2026-08-21
    Go 1.22 go122
  • google-22 (default)
  • google-22-full
    		•
  • google-22/go122
  • google-22-full/go122
    		•  2026-01-28 2026-07-28
    Go 1.21 go121
  • google-22 (default)
  • google-22-full
    		•
  • google-22/go121
  • google-22-full/go121
    		•  2025-09-03 2026-03-03
    Go 1.20 go120
  • google-22 (default)
  • google-22-full
    		•
  • google-22/go120
  • google-22-full/go120
    		•  2024-05-01 2025-05-01
    Go 1.19 go119
  • google-22 (default)
  • google-22-full
    		•
  • google-22/go119
  • google-22-full/go119
    		•  2024-04-30 2025-01-30
    Go 1.18 go118
  • google-22 (default)
  • google-22-full
    		•
  • google-22/go118
  • google-22-full/go120
    		•  2024-01-30 2025-01-30
    Go 1.16 go116 google-18-full google-18-full/go116 2024-01-30 2025-01-30
    Go 1.13 go113 google-18-full google-18-full/go113 2024-01-30 2025-01-30
    Go 1.11 go111 Decommissioned Decommissioned 2020-08-05 Feb 2021

    Java

    Runtime Runtime ID Stacks Runtime base image Deprecation Decommission
    Java 25 java25
  • google-24 (default)
  • google-24-full
    		•
  • google-24/java25
  • google-24-full/java25
    		•  October 2031
    Java 21 java21
  • google-22 (default)
  • google-22-full
    		•
  • google-22/java21
  • google-22-full/java21
    		•  September 2031
    Java 17 java17
  • google-22 (default)
  • google-22-full
    		•
  • google-22/java17
  • google-22-full/java17
    		•  October 2027
    Java 11 java11 google-18-full google-18-full/java11 2024-10-31 2025-10-31

    Ruby

    Runtime Runtime ID Stacks Runtime base image Deprecation Decommission
    Ruby 4.0 ruby40 google-24-full (default) google-24-full/ruby40 2029-03-31 2029-09-30
    Ruby 3.4 ruby34
  • google-22 (default)
  • google-22-full
    		•
  • google-22/ruby34
  • google-22-full/ruby34
    		•  2028-03-31 2028-09-30
    Ruby 3.3 ruby33
  • google-22 (default)
  • google-22-full
    		•
  • google-22/ruby33
  • google-22-full/ruby33
    		•  2027-03-31 2027-09-30
    Ruby 3.2 ruby32
  • google-22 (default)
  • google-22-full
    		•
  • google-22/ruby32
  • google-22-full/ruby32
    		•  2026-03-31 2026-09-30
    Ruby 3.0 ruby30 google-18-full google-18-full/ruby30 2024-03-31 2025-03-31
    Ruby 2.7 ruby27 google-18-full google-18-full/ruby27 2024-01-30 2025-01-30
    Ruby 2.6 ruby26 google-18-full google-18-full/ruby26 2024-01-30 2025-01-30

    PHP

    Runtime Runtime ID Stacks Runtime base image Deprecation Decommission
    PHP 8.5 php85 google-24-full (default) google-24-full/php85 2029-12-31 2030-06-30
    PHP 8.4 php84 google-22-full (default) google-22-full/php84 2028-12-31 2029-06-30
    PHP 8.3 php83 google-22-full (default) google-22-full/php83 2027-12-31 2028-06-30
    PHP 8.2 php82 google-22-full (default) google-22-full/php82 2026-12-31 2027-06-30
    PHP 8.1 php81 google-18-full google-18-full/php81 2025-12-31 2026-06-30
    PHP 7.4 php74 google-18-full google-18-full/php74 2024-01-30 2025-01-30

    .NET

    Runtime Runtime ID Stacks Runtime base image Deprecation Decommission
    .NET 10 dotnet10
  • google-24 (default)
  • google-24-full
    		•
  • google-24/dotnet10
  • google-24-full/dotnet10
    		•  2028-11-14 2029-05-14
    .NET 8 dotnet8
  • google-22 (default)
  • google-22-full
    		•
  • google-22/dotnet8
  • google-22-full/dotnet8
    		•  2026-11-10 2027-05-10
    .NET 6 dotnet6
  • google-22 (default)
  • google-22-full
    		•
  • google-22/dotnet6
  • google-22-full/dotnet6
    		•  2024-11-12 2025-11-12
    .NET Core 3 dotnet3 google-18-full google-18-full/dotnet3 2024-01-30 2025-01-30

    OS only

    Runtime Runtime ID Stacks Runtime base image Deprecation Decommission
    OS only 24 osonly24 google-24 (default) google-24/osonly24 April 30, 2029