# Checkmk 2.0 — lifecycle date releaseDate is now 2021-03-09

For Checkmk 2.0, product is checkmk; field changed is releaseDate; new value is 2021-03-09; detected is 2026-10-05, recorded from its source on 2026-10-05; source re-checked 2026-10-26.

- **Product:** checkmk
- **Product label:** Checkmk
- **Release cycle:** 2.0 _(verified: appears in the quote below)_
- **Field changed:** releaseDate _(verified: appears in the quote below)_
- **New value:** 2021-03-09 _(verified: appears in the quote below)_
- **Detected:** 2026-10-05 _(our reading, not quoted from the source)_

## What the source says

> {"name":"2.0","codename":null,"label":"2.0","releaseDate":"2021-03-09"

## Source

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

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/).