# postmarketOS 21.03 — lifecycle date releaseDate is now 2021-03-31

For postmarketOS 21.03, product is postmarketos; field changed is releaseDate; new value is 2021-03-31; detected is 2026-08-29, recorded from its source on 2026-08-29.

- **Product:** postmarketos _(verified: appears in the quote below)_
- **Product label:** postmarketOS _(verified: appears in the quote below)_
- **Release cycle:** 21.03 _(verified: appears in the quote below)_
- **Field changed:** releaseDate _(verified: appears in the quote below)_
- **New value:** 2021-03-31 _(verified: appears in the quote below)_
- **Detected:** 2026-08-29

## What the source says

> {"name":"21.03","codename":null,"label":"21.03","releaseDate":"2021-03-31"

## Source

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

Last verified: 2026-08-29. Review by: 2026-09-12.
Part of [Software end-of-life date changes — which dates moved and what they were before](https://referencesource.org/software-eol-change-feed/).