Google Container-Optimized OS (COS) end-of-life dates and support status
As of 2026-10-08, the supported Google Container-Optimized OS (COS) versions are cos-133, cos-129, cos-125, cos-121.
| Version | Status | Released | Active support until | End of life | Latest |
|---|---|---|---|---|---|
| cos-133 LTS | Supported | 2026-09-28 | — | 2028-11-01 | cos-133-19999-44-106 |
| cos-129 LTS | Supported | 2026-05-21 | — | 2028-07-01 | cos-129-19506-505-25 |
| cos-125 LTS | Supported | 2025-10-09 | — | 2028-02-01 | cos-125-19216-700-23 |
| cos-121 LTS | Supported | 2025-04-14 | — | 2027-03-01 | cos-121-18867-624-8 |
| cos-117 LTS | End of life | 2024-10-02 | — | 2026-09-01 | cos-117-18613-767-2 |
| cos-113 LTS | End of life | 2024-04-15 | — | 2026-03-01 | cos-113-18244-582-104 |
| cos-109 LTS | End of life | 2023-09-27 | — | 2025-09-01 | cos-109-17800-570-50 |
| cos-105 LTS | End of life | 2023-04-03 | — | 2025-03-01 | cos-105-17412-535-98 |
| cos-101 LTS | End of life | 2022-09-15 | — | 2024-10-01 | cos-101-17162-528-64 |
| cos-97 LTS | End of life | 2022-03-29 | — | 2024-04-01 | cos-97-16919-450-41 |
| cos-93 LTS | End of life | 2021-10-18 | — | 2023-10-01 | cos-93-16623-461-42 |
| cos-89 LTS | End of life | 2021-04-07 | — | 2023-03-01 | cos-89-16108-798-22 |
| cos-85 LTS | End of life | 2020-09-24 | — | 2022-09-01 | cos-85-13310-1498-13 |
| cos-81 LTS | End of life | 2020-03-27 | — | 2022-01-10 | cos-81-12871-1317-8 |
| cos-77 LTS | End of life | 2019-09-27 | — | 2021-04-01 | cos-77-12371-1109-0 |
| cos-73 LTS | End of life | 2019-03-25 | — | 2020-06-01 | cos-73-11647-656-0 |
| cos-69 LTS | End of life | 2018-09-18 | — | 2019-12-01 | cos-69-10895-385-0 |
Status is computed from today's date. "Security fixes only" means active support has ended but security fixes continue until end of life. Source: endoflife.date · release policy. Verified 2026-10-08.
Frequently asked questions
Which Google Container-Optimized OS (COS) versions are still supported?
As of 2026-10-08, the supported Google Container-Optimized OS (COS) versions are cos-133, cos-129, cos-125, cos-121. Versions not listed are end of life and no longer receive security fixes.
What is the latest Google Container-Optimized OS (COS) version?
The newest Google Container-Optimized OS (COS) release cycle is cos-133, whose latest version is cos-133-19999-44-106 (2026-10-06).
Which Google Container-Optimized OS (COS) versions are LTS?
Long-term support versions still receiving fixes: cos-133, cos-129, cos-125, cos-121.
Give your AI agent these facts
Vigia is a free MCP server: your coding agent checks versions, breaking changes and vulnerabilities before it writes code. No signup, no API key.
claude mcp add --transport http vigia https://vigia.coredls.cloud/mcp
Add to CursorAdd to VS Code★ Star on GitHub
Any other MCP client
{ "mcpServers": { "vigia": { "url": "https://vigia.coredls.cloud/mcp" } } }Agent skill (SKILL.md): tells the agent when to use Vigia · GitHub Action for pull requests
For agents
GET https://vigia.coredls.cloud/v1/eol/cos GET https://vigia.coredls.cloud/v1/eol/cos/cos-133