# Google Container-Optimized OS (COS) cos-133 — lifecycle date releaseDate is now 2026-09-28

For Google Container-Optimized OS (COS) cos-133, product is cos; field changed is releaseDate; new value is 2026-09-28; detected is 2026-10-05, recorded from its source on 2026-10-05; source re-checked 2026-10-26.

- **Product:** cos _(verified: appears in the quote below)_
- **Product label:** Google Container-Optimized OS (COS)
- **Release cycle:** cos-133 _(verified: appears in the quote below)_
- **Field changed:** releaseDate _(verified: appears in the quote below)_
- **New value:** 2026-09-28 _(verified: appears in the quote below)_
- **Detected:** 2026-10-05 _(our reading, not quoted from the source)_

## What the source says

> {"name":"cos-133","codename":null,"label":"133 (LTS)","releaseDate":"2026-09-28"

## Source

- https://endoflife.date/api/v1/products/cos

Last verified: 2026-10-26. Review by: 2026-11-09.
Part of [Software end-of-life date changes — which dates moved and what they were before](https://referencesource.org/software-eol-change-feed/).