---
title: "Google Cloud Run and Functions Ruby 3.4 runtime decommission: 2028-09-30 | Harbyn"
description: "Google Cloud Run and Functions Ruby 3.4 runtime decommission, effective Sep 30, 2028."
canonical: "https://harbyn.com/changes/google-cloud/2026-10-08-ruby-3-4-runtime-decommission"
last-updated: 2026-10-08
---

# Google Cloud Run and Functions Ruby 3.4 runtime decommission

Markdown version of <https://harbyn.com/changes/google-cloud/2026-10-08-ruby-3-4-runtime-decommission>.

Retirement - Google Cloud Run and Functions. high severity. Announced. Upcoming.

From 2028-09-30, Cloud Run and Cloud Run functions no longer create or update workloads on the ruby34 runtime (deprecated from 2028-03-31), and workloads still running on it may be disabled. Applies only to workloads built on Google-managed runtime base images; Google says the schedule may change.

706 days left: the deadline is Sep 30, 2028.

## Facts

| Fact | Value |
| --- | --- |
| Vendor | [Google Cloud Run and Functions](https://harbyn.com/vendors/google-cloud.md) |
| Kind | Retirement |
| Severity | high |
| Status | Announced |
| Announced | Oct 8, 2026 (undated by the vendor; already published when we first read the page) |
| Effective | Sep 30, 2028 |
| Added to Harbyn | Oct 8, 2026 |
| Lead time | 723 days of warning |
| Symbols | `ruby34` |
| Review | Reviewed by a person, extracted by a model |

## Find it in your code

```sh
npx harbyn scan
```

This change names no identifier the scanner can match line by line, so the scan tells you whether your repository uses Google Cloud Run and Functions, from its packages and API hosts. Nothing leaves your machine.

## Sources

Where this event comes from: the page we read, when we read it, and the hash of that snapshot.

- <https://docs.cloud.google.com/run/docs/runtime-support> (deprecations, fetched 2026-10-08 23:25 UTC, sha256 `51ce399bef4f0dc111251e712b55f50f3b161c1eb58d416c3ccf617b7fcefd97`)

## Related changes

### More from Google Cloud Run and Functions

- [Go 1.24 runtime decommission](https://harbyn.com/changes/google-cloud/2026-10-08-go-1-24-runtime-decommission.md) (Retirement, effective Mar 2, 2027)
- [Go 1.25 runtime decommission](https://harbyn.com/changes/google-cloud/2026-10-08-go-1-25-runtime-decommission.md) (Retirement, effective Apr 1, 2027)
- [Java 17 runtime deprecation](https://harbyn.com/changes/google-cloud/2026-10-08-java-17-runtime-deprecation.md) (Deprecation, effective Oct 2027)
- [Java 21 runtime deprecation](https://harbyn.com/changes/google-cloud/2026-10-08-java-21-runtime-deprecation.md) (Deprecation, effective Sep 2031)

### Changes at other vendors

- [OpenRouter: arcee-ai/trinity-large-thinking expire 2026-10-26](https://harbyn.com/changes/openrouter/2026-10-23-arcee-ai-trinity-large-thinking-expires-2026-10-26.md) (effective Oct 26, 2026)
- [Mistral AI: Z.ai GLM 5.2 (zai-glm-5-2) retires on Mistral on October 31, 2026](https://harbyn.com/changes/mistral/2026-09-29-z-ai-glm-5-2-deprecated-and-scheduled-for-retirement.md) (effective Oct 31, 2026)
- [Fireworks AI: DeepSeek V4 Flash 0731 retires from Serverless Training November 2](https://harbyn.com/changes/fireworks/2026-10-18-upcoming-serverless-training-deprecation-deepseek-v4-flash-0731.md) (effective Nov 2, 2026)
- [GitHub: GitHub Actions: macOS 14 runner image retired on November 2, 2026](https://harbyn.com/changes/github/2026-10-01-github-actions-macos-14-runner-image-retirement.md) (effective Nov 2, 2026)

[All upcoming deadlines](https://harbyn.com/deadlines.md)
