Anthropic Claude End of Life (EOL) Dates and End of Support (EOS) Dates
27 Anthropic Claude versions have reached End of Life (EOL) and End of Support (EOS), including Anthropic Claude Claude Opus 4.1 (EOL date: Aug 05, 2026) — no longer receiving security updates or patches. Anthropic Claude Claude Haiku 4.5 reaches its End of Support date on Oct 15, 2026 — plan your upgrade path now. Anthropic Claude Claude Sonnet 5.5 is the current supported release, with support through Sep 28, 2027 — 21 versions in active support. Also see Azure Kubernetes Service end of support life for related end-of-life information.
Currently Supported Anthropic Claude Releases - Active EOS/EOSL Support (21)
| Release | Recommended Replacement | Released | Deprecated support | Active support | Latest |
|---|---|---|---|---|---|
| Claude Sonnet 5.5 | N/A | (1 week and 3 days ago) | (in 11 months) | Active | - |
| Claude Opus 5.5 | N/A | (2 weeks and 2 days ago) | (in 11 months) | Active | - |
| Claude Fable 5.1 | N/A | (1 month and 1 week ago) | (in 10 months) | Active | - |
| Claude Mythos 5.1 | N/A | (1 month and 1 week ago) | (in 10 months) | Active | - |
| Claude Opus 5 | N/A | (2 months ago) | (in 9 months) | Active | - |
| Claude Sonnet 5 | N/A | (3 months ago) | (in 8 months) | Active | - |
| Claude Fable 5 | N/A | (3 months ago) | (in 8 months) | Active | - |
| Claude Mythos 5 | N/A | (3 months ago) | (in 8 months) | Active | - |
| Claude Opus 4.8 | N/A | (4 months ago) | (in 7 months) | Active | - |
| Claude Opus 4.7 | N/A | (5 months ago) | (in 6 months) | Active | - |
| Claude Sonnet 4.6 | N/A | (7 months ago) | (in 4 months) | Active | - |
| Claude Sonnet 4.6 | N/A | (7 months ago) | Active | Active | claude-sonnet-4-6 (7 months ago) |
| Claude Opus 4.6 | N/A | (8 months ago) | (in 3 months) | Active | - |
| Claude Opus 4.6 | N/A | (8 months ago) | Active | Active | claude-opus-4-6 (8 months ago) |
| Claude Opus 4.5 | N/A | (10 months ago) | (in 1 month and 2 weeks) | Active | - |
| Claude Opus 4.5 | N/A | (10 months ago) | Active | Active | claude-opus-4-5-20251101 (10 months ago) |
| Claude Haiku 4.5 | N/A | (11 months ago) | Active | Active | claude-haiku-4-5-20251001 (11 months ago) |
| Claude Sonnet 4.5 | N/A | (1 year ago) | Active | Active | claude-sonnet-4-5-20250929 (1 year ago) |
| Claude Opus 4.1 | N/A | (1 year and 2 months ago) | Active | Active | claude-opus-4-1-20250805 (1 year and 2 months ago) |
| Claude Opus 4 | N/A | (1 year and 4 months ago) | Active | Active | claude-opus-4-20250514 (1 year and 4 months ago) |
| Claude Sonnet 4 | N/A | (1 year and 4 months ago) | Active | Active | claude-sonnet-4-20250514 (1 year and 4 months ago) |
Anthropic Claude Releases Nearing End of Life - Support Ending Soon (2)
| Release | Recommended Replacement | Released | Deprecated support | Active support | Latest |
|---|---|---|---|---|---|
| Claude Haiku 4.5 | N/A | (11 months ago) | (in 1 week) | Active | - |
| Claude Sonnet 4.5 | claude-sonnet-5-5 | (1 year ago) | (in 1 month and 3 weeks) | (1 week and 1 day ago) | - |
Anthropic Claude End of Life (EOL) Releases - No Longer Supported (27)
| Release | Recommended Replacement | Released | Deprecated support | Active support | Latest |
|---|---|---|---|---|---|
| Claude Opus 4.1 | claude-opus-4-8 | (1 year and 2 months ago) | (2 months ago) | (4 months ago) | - |
| Claude Opus 4 | claude-opus-4-8 | (1 year and 4 months ago) | (3 months ago) | (5 months ago) | - |
| Claude Sonnet 4 | claude-sonnet-4-6 | (1 year and 4 months ago) | (3 months ago) | (5 months ago) | - |
| Claude Sonnet 3.7 | claude-sonnet-4-6 | (1 year and 7 months ago) | (7 months ago) | (11 months ago) | - |
| Claude Sonnet 3.7 | claude-opus-4-6 | (1 year and 7 months ago) | (7 months ago) | (11 months ago) | claude-3-7-sonnet-20250219 (1 year and 7 months ago) |
| Claude Sonnet 3.5 (20241022) | claude-sonnet-4-6 | (1 year and 11 months ago) | (11 months ago) | (1 year and 1 month ago) | - |
| Claude Haiku 3.5 | claude-haiku-4-5-20251001 | (1 year and 11 months ago) | (7 months ago) | (9 months ago) | - |
| Claude Haiku 3.5 | claude-haiku-4-5-20251001 | (1 year and 11 months ago) | (7 months ago) | (9 months ago) | claude-3-5-haiku-20241022 (1 year and 11 months ago) |
| Claude Sonnet 3.5 (20240620) | claude-sonnet-4-6 | (2 years and 3 months ago) | (11 months ago) | (1 year and 1 month ago) | - |
| Claude Sonnet 3.5 | claude-opus-4-6 | (2 years and 3 months ago) | (11 months ago) | (1 year and 1 month ago) | claude-3-5-sonnet-20241022 (1 year and 11 months ago) |
| Claude Haiku 3 | claude-haiku-4-5-20251001 | (2 years and 6 months ago) | (5 months ago) | (7 months ago) | - |
| Claude Haiku 3 | claude-haiku-4-5-20251001 | (2 years and 6 months ago) | (5 months ago) | (7 months ago) | claude-3-haiku-20240307 (2 years and 6 months ago) |
| Claude Sonnet 3 | claude-sonnet-4-6 | (2 years and 7 months ago) | (1 year and 2 months ago) | (1 year and 8 months ago) | - |
| Claude Opus 3 | claude-opus-4-8 | (2 years and 7 months ago) | (9 months ago) | (1 year and 3 months ago) | - |
| Claude Sonnet 3 | claude-opus-4-6 | (2 years and 7 months ago) | (1 year and 2 months ago) | (1 year and 8 months ago) | claude-3-sonnet-20240229 (2 years and 7 months ago) |
| Claude Opus 3 | claude-opus-4-6 | (2 years and 7 months ago) | (9 months ago) | (1 year and 3 months ago) | claude-3-opus-20240229 (2 years and 7 months ago) |
| Claude 2.1 | claude-opus-4-8 | (2 years and 10 months ago) | (1 year and 2 months ago) | (1 year and 8 months ago) | - |
| Claude Instant 1.2 | claude-haiku-4-5-20251001 | (3 years and 1 month ago) | (1 year and 11 months ago) | (1 year and 11 months ago) | - |
| Claude Instant 1 | claude-haiku-4-5-20251001 | (3 years and 1 month ago) | (1 year and 11 months ago) | (2 years and 1 month ago) | claude-instant-1.2 |
| Claude 2.0 | claude-opus-4-8 | (3 years and 2 months ago) | (1 year and 2 months ago) | (1 year and 8 months ago) | - |
| Claude 1.3 | claude-haiku-4-5-20251001 | (3 years and 5 months ago) | (1 year and 11 months ago) | (2 years and 1 month ago) | - |
| Claude Instant 1.1 | claude-haiku-4-5-20251001 | (3 years and 6 months ago) | (1 year and 11 months ago) | (1 year and 11 months ago) | - |
| Claude 1.0 | claude-haiku-4-5-20251001 | (3 years and 6 months ago) | (1 year and 11 months ago) | (2 years and 1 month ago) | - |
| Claude Instant 1.0 | claude-haiku-4-5-20251001 | (3 years and 6 months ago) | (1 year and 11 months ago) | (2 years and 1 month ago) | - |
| Claude 1.1 | claude-haiku-4-5-20251001 | (3 years and 6 months ago) | (1 year and 11 months ago) | (2 years and 1 month ago) | - |
| Claude 1.2 | claude-haiku-4-5-20251001 | (3 years and 6 months ago) | (1 year and 11 months ago) | (2 years and 1 month ago) | - |
| Claude 1 | claude-haiku-4-5-20251001 | (3 years and 6 months ago) | (1 year and 11 months ago) | (2 years and 1 month ago) | claude-1.3 |
Anthropic Claude End of Life & Support Summary
Which Anthropic Claude Versions Are Currently Supported?
Anthropic Claude currently has 21 supported releases. Anthropic Claude Claude Sonnet 5.5 is the latest, with active support through Sep 28, 2027. Anthropic Claude Claude Opus 5.5 is also supported until Sep 22, 2027. Note that Anthropic Claude Claude Haiku 4.5 support ends on Oct 15, 2026 — plan your upgrade before then. Also see OpenAI API Models end of life for related end-of-life information.
Anthropic Claude Versions Nearing End of Life
2 Anthropic Claude releases are reaching End of Life (EOL) within 6 months. Anthropic Claude Claude Haiku 4.5 support ends on Oct 15, 2026. Anthropic Claude Claude Sonnet 4.5 follows on Nov 30, 2026. Upgrade to Anthropic Claude Claude Sonnet 5.5 to stay on a supported release. Also see GitHub Actions Runner Images end of life for related end-of-life information.
Anthropic Claude End of Life (EOL) Version History
27 Anthropic Claude releases have reached End of Life (EOL) and End of Support (EOS) — no longer receiving updates or patches. Anthropic Claude Claude Opus 4.1 reached EOL on Aug 05, 2026. Anthropic Claude Claude Sonnet 5.5 is the recommended upgrade for users still on End of Life versions.