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.
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When a language version is no longer actively maintained by the respective community, Cloud Run functions will also stop providing maintenance and support for that language runtime.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When a component is no longer actively maintained, Cloud Run functions may deprecate and eventually remove the runtime.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 | 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 1.23 (Preview only) |
Run functions | go123 | google-22-full | google-22-full/go123 | ||
| 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 |