Time to Bail · Boarding pass
Act. You can stay.
After April 1, 2027, Go 1.25 functions cannot be created or updated, and may be disabled.[1]
Act means: change a setting or plan before the date. You can stay.
Go 1.25 functions on Google Cloud: decommissioned April 1, 2027
Google decommissions the Go 1.25 runtime (go125) for Cloud Run functions on April 1, 2027. After that you cannot create or update these functions, and they may be disabled.
One email with the first steps. Nothing else.
Or add the date to your calendar: Apple or Outlook (.ics) · Google Calendar
Tick steps as you go. Your progress stays in this browser.
In the console, check the runtime of each function. Note every one on go125.
Set the runtime to go126 or go127 and update your dependencies.
Deploy and test every function before April 1, 2027.
One email with the first steps. Nothing else.
Or add the date to your calendar: Apple or Outlook (.ics) · Google Calendar
| Decommission date | April 1, 2027[1] |
|---|---|
| Runtime | Go 1.25, runtime ID go125 (Cloud Run functions)[1] |
| Deprecated since | October 1, 2026[1] |
| After decommission | You can no longer create new workloads or update existing ones on the runtime[1] |
| If you do nothing | Functions that stay on a decommissioned runtime may be disabled[1] |
| Cloud Run source deploys | The go125 runtime on Cloud Run has the same dates[2] |
| Can the dates change? | Google says key dates might be delayed[1] |
| Older Go runtime | Go 1.24: decommissioned earlier, on March 2, 2027[1] |
| Go version policy | Each Go release is supported until there are two newer major releases, so dates can move[1] |
| Newer runtimes | Go 1.26 (go126) dates are approximate (deprecated Feb/March 2027); Go 1.27 (go127) deprecated Aug/Sept 2027[1] |
| Functions still on Go 1.25 | Cannot be updated after April 1, 2027 and may be disabled[1] |
You can no longer create or update functions on Go 1.25. To deploy, you must pick a newer runtime. Google may disable functions left on Go 1.25.
go126 or go127, then deploy again.Source: [1] Cloud Run functions runtime support (Google Cloud)
Check it yourself. Every fact above links here.
Time to bail on Cloud Run functions on Go 1.25? Act. You can stay. After April 1, 2027, Go 1.25 functions cannot be created or updated, and may be disabled.
On our scale this is Act: change a setting or plan before the date. You can stay.
Google decommissions the Go 1.25 runtime (go125) for Cloud Run functions on April 1, 2027. After that you cannot create or update these functions, and they may be disabled.
Here are the facts we checked:
You can stay on Cloud Run functions. You have to change a setting or plan before the date.
Leaving is a choice here, not a must.
Google Cloud is the main source for this page. Cloud Run functions has not said more than what is listed here. If a fact is not on this page, we do not know it yet.
Functions still on Go 1.25: Cannot be updated after April 1, 2027 and may be disabled.
The date to remember is April 1, 2027. Make the change before then.
A few tips:
If the change affects your members or team, send one short email. Say what changes for them and when. Put the most important line first.
If there is a date, send a short reminder a few days before it. Keep a copy of the list you sent it to.
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Arrivals · for builders
People on Cloud Run functions on Go 1.25 can stay if they make the change. Some would rather leave. Get the playbook for this change, and list your product here.
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