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

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

When a language version is no longer actively maintained by the respectivecommunity, Cloud Run will also stop providing maintenance and support forthat language runtime. Before a runtime reaches the deprecation phase asdescribed in the runtimes support schedule, Google willprovide a notification to customers in the Google Cloud console.

Google may make changes to any runtime's support schedule or lifecycle inaccordance with the terms of your agreement for the use of Google Cloudservices.

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

When a component is no longer actively maintained, Cloud Run maydeprecate and eventually remove the runtime.

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

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

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

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

Based on qualification and stability of releases, availability and key datesmight be delayed. A blank deprecation or decommission date means that phase hasnot yet been scheduled. Revisit this page to stay up to date.