Cos End of Life Dates

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Developers rely on Cos to stay informed about the lifecycle of each release, ensuring they can plan and execute timely upgrades to maintain the security and stability of their systems. Created to address the need for transparency around end-of-life dates and supported versions, Cos has become an essential tool for teams that need to manage complex software ecosystems. The maintainers of Cos continuously update the platform to reflect the latest information on Cos releases, providing users with accurate data to make informed decisions. With its comprehensive tracking capabilities, Cos helps developers avoid potential security risks and compatibility issues that can arise when using unsupported software.

The Cos ecosystem consists of 16 versions, with 12 of these already having reached their end-of-life, and 4 remaining active. The latest stable version, cos-125-19216-395-55, is the current benchmark for supported releases. However, developers should be aware that another version, cos-117, is scheduled to expire on 2026-09-01, marking an important milestone in the Cos lifecycle. This information is crucial for planning and executing upgrades, as using unsupported versions can expose systems to unnecessary risks. The most recent end-of-life date was 2026-05-12, when version cos-113 reached the end of its support period, underscoring the dynamic nature of the Cos release landscape.

Given the current security landscape, Cos has a clean slate with 0 tracked CVEs and 0 critical vulnerabilities, indicating a strong security posture. As a result, there is no most affected version to report, and no Known Exploited Vulnerabilities (KEV) have been identified. While this is a positive situation, developers should still remain vigilant and ensure they are using a supported version of Cos to minimize potential risks. By staying informed about the latest Cos releases and their corresponding end-of-life dates, developers can proactively manage their software dependencies and maintain a secure environment for their applications.

Last updated: Sep 7, 2026

VersionReleasedActive supportEOL dateUntil EOLLatestCVEsStatusAlert me
cos-129 LTSMay 21, 2026Mar 1, 2028in 541dcos-129-19506-448-8Active
cos-125 LTSOct 9, 2025Sep 1, 2027in 359dcos-125-19216-655-6Active
cos-121 LTSApr 14, 2025Mar 1, 2027in 175dcos-121-18867-584-3Active
cos-117 LTSOct 2, 2024Sep 1, 20266d agocos-117-18613-731-2EOL
cos-113 LTSApr 15, 2024May 12, 2026118d agocos-113-18244-582-104EOL
cos-109 LTSSep 27, 2023Sep 24, 2025348d agocos-109-17800-570-50EOL
cos-105 LTSApr 3, 2023Apr 1, 2025524d agocos-105-17412-535-98EOL
cos-101 LTSSep 15, 2022Oct 21, 2024686d agocos-101-17162-528-64EOL
cos-97 LTSMar 29, 2022Mar 27, 2024894d agocos-97-16919-450-41EOL
cos-93 LTSOct 18, 2021Oct 24, 20231049d agocos-93-16623-461-42EOL
cos-89 LTSApr 7, 2021Mar 1, 20231286d agocos-89-16108-798-22EOL
cos-85 LTSSep 24, 2020Sep 1, 20221467d agocos-85-13310-1498-13EOL
cos-81 LTSMar 27, 2020Jan 10, 20221701d agocos-81-12871-1317-8EOL
cos-77 LTSSep 27, 2019Apr 1, 20211985d agocos-77-12371-1109-0EOL
cos-73 LTSMar 25, 2019Sep 5, 20202193d agocos-73-11647-656-0EOL
cos-69 LTSSep 18, 2018Dec 1, 20192472d agocos-69-10895-385-0EOL

Data sourced from endoflife.date · CVE data from NVD

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