# Anthropic Claude claude-sonnet-4-5-20250929 — lifecycle date eoasFrom is now 2026-09-30

For Anthropic Claude claude-sonnet-4-5-20250929, product is claude; field changed is eoasFrom; new value is 2026-09-30; detected is 2026-10-05, recorded from its source on 2026-10-05; source re-checked 2026-10-26.

- **Product:** claude _(verified: appears in the quote below)_
- **Product label:** Anthropic Claude
- **Release cycle:** claude-sonnet-4-5-20250929 _(verified: appears in the quote below)_
- **Field changed:** eoasFrom _(verified: appears in the quote below)_
- **New value:** 2026-09-30 _(verified: appears in the quote below)_
- **Detected:** 2026-10-05 _(our reading, not quoted from the source)_

## What the source says

> {"name":"claude-sonnet-4-5-20250929","codename":null,"label":"Claude Sonnet 4.5","releaseDate":"2025-09-29","isLts":false,"ltsFrom":null,"isEoas":true,"eoasFrom":"2026-09-30"

## Source

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

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/).