Google Container-Optimized OS (COS) End of Life Dates
All 16 Google Container-Optimized OS (COS) release branches: support windows, latest releases, and what each EOL branch has missed since. Data refreshed daily.
Support lifecycle at a glance
■ supported ■ security fixes only ■ end of life
All versions
Release dates, end-of-life dates and current support status for every Google Container-Optimized OS (COS) branch.
| Branch | Released | End of life | Status | Latest |
|---|---|---|---|---|
| cos-129 | 21 May 2026 | 1 Mar 2028 | supported | cos-129-19506-299-82 |
| cos-125 | 9 Oct 2025 | 1 Sept 2027 | supported | cos-125-19216-532-62 |
| cos-121 | 14 Apr 2025 | 1 Mar 2027 | supported | cos-121-18867-528-43 |
| cos-117 | 2 Oct 2024 | 1 Sept 2026 | supported | cos-117-18613-675-37 |
| cos-113 | 15 Apr 2024 | 12 May 2026 | EOL | cos-113-18244-582-104 |
| cos-109 | 27 Sept 2023 | 24 Sept 2025 | EOL | cos-109-17800-570-50 |
| cos-105 | 3 Apr 2023 | 1 Apr 2025 | EOL | cos-105-17412-535-98 |
| cos-101 | 15 Sept 2022 | 21 Oct 2024 | EOL | cos-101-17162-528-64 |
| cos-97 | 29 Mar 2022 | 27 Mar 2024 | EOL | cos-97-16919-450-41 |
| cos-93 | 18 Oct 2021 | 24 Oct 2023 | EOL | cos-93-16623-461-42 |
| cos-89 | 7 Apr 2021 | 1 Mar 2023 | EOL | cos-89-16108-798-22 |
| cos-85 | 24 Sept 2020 | 1 Sept 2022 | EOL | cos-85-13310-1498-13 |
| cos-81 | 27 Mar 2020 | 10 Jan 2022 | EOL | cos-81-12871-1317-8 |
| cos-77 | 27 Sept 2019 | 1 Apr 2021 | EOL | cos-77-12371-1109-0 |
| cos-73 | 25 Mar 2019 | 5 Sept 2020 | EOL | cos-73-11647-656-0 |
| cos-69 | 18 Sept 2018 | 1 Dec 2019 | EOL | cos-69-10895-385-0 |