Runtime Support

Runtimes on Cloud Run functions are base images that include components and operating system, software required to build and execute code written for a specific programming language, and software to support your function.

Cloud Run functions applies updates to runtimes in accordance with your selected security update policy.

Diagram outlining the stages in the lifecycle of a Cloud Run functions
runtime

Google provides support for a runtime during General availability (GA). During this support window:

  • Runtime components are regularly updated with security and bug fixes.
  • Updates are applied in accordance with your workload's security update policy.
  • To maintain stability, Cloud Run functions avoids implementing breaking features or breaking changes into the runtime. Breaking changes will be announced in advance in Cloud Run functions release notes.

When a language version is no longer actively maintained by the respective community, Cloud Run functions will also stop providing maintenance and support for that language runtime. Before a runtime reaches the deprecation phase as described in the runtimes support schedule, Google will provide a notification to customers in the Google Cloud console.

Google may make changes to any runtime's support schedule or lifecycle in accordance with the terms of your agreement for the use of Google Cloud services.

Runtime lifecycle

GA-level support Deprecated Decommissioned
Creation and redeployment Yes Yes No
Running existing workloads Yes Yes No
Language patches As per policy As per policy No updates
Patching system packages As per policy As per policy No updates
Patching OS As per policy As per policy No updates
Customer support GA-level support No runtime support No runtime support

Notification Period

Cloud Run functions will begin issuing notifications 90 days before the runtime reaches deprecation. Upon notification, you should prepare to upgrade your function to a newer supported runtime.

Deprecation and Decommissioning

When a component is no longer actively maintained, Cloud Run functions may deprecate and eventually remove the runtime.

This has three aspects: a publication of the deprecation date, a deprecation period, and a decommission date. In the following schedule, the deprecation date is the start of the deprecation period and ends at the beginning of the decommission date. The decommission date indicates the start of the decommission period.

During the deprecation period, you can generally continue to create new workloads and update existing workloads using the runtime. You should use this time to migrate workloads that use the deprecated runtime to a more up-to-date runtime.

After the decommission date, you can no longer create new workloads or update existing workloads using the runtime. You must choose a more up-to-date runtime to deploy your workloads. Workloads that continue to use a decommissioned runtime may be disabled.

Support Schedule

Here is the list of supported Cloud Run functions runtimes, as well as runtimes that have been deprecated or decommissioned.

Based on qualification and stability of releases, availability and key dates might be delayed. A blank deprecation or decommission date means that phase has not yet been scheduled. Revisit this page to stay up to date.

Node.js

Runtime Generation Runtime ID Stacks Runtime base image Deprecation Decommission
Node.js 22
(preview only)
Run functions nodejs22 google-22-full google-22-full/nodejs22 2027-04-30 2028-10-31
Node.js 20 1st gen, Run functions nodejs20 google-22-full google-22-full/nodejs20 2026-04-30 2026-10-30
Node.js 18 1st gen, Run functions nodejs18 google-22-full google-22-full/nodejs18 2025-04-30 2025-10-30
Node.js 16 1st gen, Run functions nodejs16 google-18-full google-18-full/nodjes16 2024-01-30 2025-01-30
Node.js 14 1st gen, Run functions nodejs14 google-18-full google-18-full/nodjes14 2024-01-30 2025-01-30
Node.js 12 1st gen, Run functions nodejs12 google-18-full google-18-full/nodjes14 2024-01-30 2025-01-30
Node.js 10 1st gen, Run functions nodejs10 google-18-full google-18-full/nodjes10 2024-01-30 2025-01-30
Node.js 8 1st gen, Run functions nodejs8 Decommissioned Decommissioned 2020-06-05 Feb 2021
Node.js 6 1st gen, Run functions nodejs6 Decommissioned Decommissioned 2019-04-17 Aug 2020

Python

Runtime Generation Runtime ID Stacks Runtime base image Deprecation Decommission
Python 3.12 1st gen, Run functions python312 google-22-full google-22-full/python312 2028-10-02 2029-04-02
Python 3.11 1st gen, Run functions python311 google-22-full google-22-full/python311 2027-10-24 2028-04-24
Python 3.10 1st gen, Run functions python310 google-22-full google-22-full/python310 2026-10-04 2027-04-04
Python 3.9 1st gen, Run functions python39 google-18-full google-18-full/python39 2025-10-05 2026-04-05
Python 3.8 1st gen, Run functions python38 google-18-full google-18-full/python38 2024-10-14 2025-10-14
Python 3.7 1st gen, Run functions python37 google-18-full google-18-full/python37 2024-01-30 2025-01-30

Go

Runtime Generation Runtime ID Stacks Runtime base image Deprecation Decommission
Go 1.22 Run functions go122 google-22-full google-22-full/go122
Go 1.21 Run functions go121 google-22-full google-22-full/go121
Go 1.20 Run functions go120 google-22-full google-22-full/go120 2024-05-01 2025-05-01
Go 1.19 1st gen, Run functions go119 google-22-full google-22-full/go119 2024-04-30 2025-01-30
Go 1.18 1st gen, Run functions go118 google-22-full google-22-full/go120 2024-01-30 2025-01-30
Go 1.16 1st gen, Run functions go116 google-18-full google-18-full/go116 2024-01-30 2025-01-30
Go 1.13 1st gen, Run functions go113 google-18-full google-18-full/go113 2024-01-30 2025-01-30
Go 1.11 1st gen, Run functions go111 Decommissioned Decommissioned 2020-08-05 Feb 2021

Java

Runtime Generation Runtime ID Stacks Runtime base image Deprecation Decommission
Java 21 Run functions java21 google-22-full google-22-full/java21 Oct 2031
Java 17 1st gen, Run functions java17 google-22-full google-22-full/java17 October 2027
Java 11 1st gen, Run functions java11 google-18 google-18/java11 2024-10-31 2025-10-31

Ruby

Runtime Generation Runtime ID Stacks Runtime base image Deprecation Decommission
Ruby 3.3 1st gen, Run functions ruby33 google-22-full google-22-full/ruby33 2027-03-31 2027-09-30
Ruby 3.2 1st gen, Run functions ruby32 google-22-full google-22-full/ruby32 2026-03-31 2026-09-30
Ruby 3.0 1st gen, Run functions ruby30 google-18-full google-18-full/ruby30 2024-03-31 2025-03-31
Ruby 2.7 1st gen, Run functions ruby27 google-18-full google-18-full/ruby27 2024-01-30 2025-01-30
Ruby 2.6 1st gen, Run functions ruby26 google-18-full google-18-full/ruby26 2024-01-30 2025-01-30

PHP

Runtime Generation Runtime ID Stacks Runtime base image Deprecation Decommission
PHP 8.3 Run functions php83 google-22-full google-22-full/php83 2027-12-31 2028-06-30
PHP 8.2 1st gen, Run functions php82 google-22-full google-22-full/php82 2026-12-31 2027-06-30
PHP 8.1 1st gen, Run functions php81 google-18-full google-18-full/php81 2025-12-31 2026-06-30
PHP 7.4 1st gen, Run functions php74 google-18-full google-18-full/php74 2024-01-30 2025-01-30

.NET Core

Runtime Generation Runtime ID Stacks Runtime base image Deprecation Decommission
.NET Core 8 Run functions dotnet8 google-22-full google-22-full/dotnet8
.NET Core 6 1st gen, Run functions dotnet6 google-22-full google-22-full/dotnet6 2024-11-12 2025-11-12
.NET Core 3 1st gen, Run functions dotnet3 google-18-full google-18-full/dotnet3 2024-01-30 2025-01-30