Google Container-Optimized OS (COS) End of Life (EOL) Dates and End of Support (EOS) Dates

Latest Release: cos-133-19999-44-106 LTS
Official Release Policy

13 Google Container-Optimized OS (COS) versions have reached End of Life (EOL) and End of Support (EOS), including Google Container-Optimized OS (COS) 117 (LTS) (EOL date: Sep 01, 2026) — no longer receiving security updates or patches. Google Container-Optimized OS (COS) 121 (LTS) reaches its End of Support date on Mar 01, 2027 — plan your upgrade path now. Google Container-Optimized OS (COS) cos-133-19999-44-106 LTS is the current supported release, with support through Nov 01, 2028 — 3 versions in active support. Also see Google Chrome end of support dates for related end-of-life information.

Google Container-Optimized OS (COS) end of life dates timeline — release schedule chart of the 8 most recent Google Container-Optimized OS (COS) versions, mapping security support windows against their EOL dates
Google Container-Optimized OS (COS) end of life dates and end of support (EOS) dates shown as a release schedule — support windows for the 8 most recent Google Container-Optimized OS (COS) releases of 17 total. Each bar runs from the release date to the end of security support, with the dashed line marking today. Exact Google Container-Optimized OS (COS) EOL, EOS and EOSL dates for every version are listed in the tables below.

Currently Supported Google Container-Optimized OS (COS) Releases - Active EOS/EOSL Support (3)

Release Released Support Status Latest LTS
133 (LTS) (1 week and 3 days ago) (in 2 years) cos-133-19999-44-106 (2 days ago) LTS
129 (LTS) (4 months ago) (in 1 year and 8 months) cos-129-19506-505-25 (2 days ago) LTS
125 (LTS) (11 months ago) (in 1 year and 3 months) cos-125-19216-700-23 (2 days ago) LTS

Google Container-Optimized OS (COS) Releases Nearing End of Life - Support Ending Soon (1)

Important: The following Google Container-Optimized OS (COS) releases will reach End of Life (EOL) within 6 months. Plan your migration to a supported release to ensure continued security updates and support.
Release Released Support Status Latest LTS
121 (LTS) (1 year and 5 months ago) (in 4 months) cos-121-18867-624-8 (2 days ago) LTS

Google Container-Optimized OS (COS) End of Life (EOL) Releases - No Longer Supported (13)

Release Released Support Status Latest LTS
117 (LTS) (2 years ago) (1 month and 1 week ago) cos-117-18613-767-2 (1 week and 3 days ago) LTS
113 (LTS) (2 years and 5 months ago) (7 months ago) cos-113-18244-582-104 (4 months ago) LTS
109 (LTS) (3 years ago) (1 year and 1 month ago) cos-109-17800-570-50 (1 year ago) LTS
105 (LTS) (3 years and 6 months ago) (1 year and 7 months ago) cos-105-17412-535-98 (1 year and 6 months ago) LTS
101 (LTS) (4 years ago) (2 years ago) cos-101-17162-528-64 (1 year and 11 months ago) LTS
97 (LTS) (4 years and 6 months ago) (2 years and 6 months ago) cos-97-16919-450-41 (2 years and 6 months ago) LTS
93 (LTS) (4 years and 11 months ago) (3 years ago) cos-93-16623-461-42 (2 years and 11 months ago) LTS
89 (LTS) (5 years and 6 months ago) (3 years and 7 months ago) cos-89-16108-798-22 (3 years and 6 months ago) LTS
85 (LTS) (6 years ago) (4 years and 1 month ago) cos-85-13310-1498-13 (4 years and 1 month ago) LTS
81 (LTS) (6 years and 6 months ago) (4 years and 8 months ago) cos-81-12871-1317-8 (4 years and 8 months ago) LTS
77 (LTS) (7 years ago) (5 years and 6 months ago) cos-77-12371-1109-0 (5 years and 8 months ago) LTS
73 (LTS) (7 years and 6 months ago) (6 years and 4 months ago) cos-73-11647-656-0 (6 years and 1 month ago) LTS
69 (LTS) (8 years ago) (6 years and 10 months ago) cos-69-10895-385-0 (7 years ago) LTS

Google Container-Optimized OS (COS) End of Life & Support Summary

Which Google Container-Optimized OS (COS) Versions Are Currently Supported?

Google Container-Optimized OS (COS) currently has 3 supported releases. Google Container-Optimized OS (COS) cos-133-19999-44-106 LTS is the latest, with active support through Nov 01, 2028. Google Container-Optimized OS (COS) 129 (LTS) is also supported until Jul 01, 2028. Note that Google Container-Optimized OS (COS) 121 (LTS) support ends on Mar 01, 2027 — plan your upgrade before then. Also see Google Pixel Watch end of support for related end-of-life information.

Google Container-Optimized OS (COS) Versions Nearing End of Life

1 Google Container-Optimized OS (COS) release is reaching End of Life (EOL) within 6 months. Google Container-Optimized OS (COS) 121 (LTS) support ends on Mar 01, 2027. Upgrade to Google Container-Optimized OS (COS) cos-133-19999-44-106 LTS to stay on a supported release.

Google Container-Optimized OS (COS) End of Life (EOL) Version History

13 Google Container-Optimized OS (COS) releases have reached End of Life (EOL) and End of Support (EOS) — no longer receiving updates or patches. Google Container-Optimized OS (COS) 117 (LTS) reached EOL on Sep 01, 2026. Google Container-Optimized OS (COS) cos-133-19999-44-106 LTS is the recommended upgrade for users still on End of Life versions.