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Anthropic ClaudeEnd of Life (EOL) Dates & Support Status

Active
OtherLatest Version: claude-opus-5-5Latest Release: N/A

Support summary

Anthropic Claude claude-sonnet-4-5-20250929 reaches EOL in 2 days. Start upgrade planning and compatibility testing now.

What do EOL and support statuses mean?

Next EOL

Sep 29, 2026

Anthropic Claude claude-sonnet-4-5-20250929 · 2 days left

Supported cycles

14

0 lts

Versions

33

Latest Version

claude-opus-5-5

Active Support

14

EOL

19

Lifecycle Timeline

Feb 17, 2026As of Sep 27, 2026
claude-opus-5-5Active · Sep 22, 2027
claude-mythos-5-1Active · Sep 1, 2027
claude-fable-5-1Active · Sep 1, 2027
claude-opus-5Active · Jul 24, 2027
claude-sonnet-5Active · Jun 30, 2027
claude-mythos-5Active · Jun 9, 2027
claude-fable-5Active · Jun 9, 2027
claude-opus-4-8Active · May 28, 2027
claude-opus-4-7Active · Apr 16, 2027
claude-sonnet-4-6Active · Feb 17, 2027
ActiveSecurityEOLHistorical phase unknown

Bars show history up to the snapshot date. Gray intervals lack dated support boundaries; arrows indicate an unannounced EOL date, not a support guarantee.

Versions

ReleaseRelease DateActive SupportEOLLatest VersionLTSStatus
claude-opus-5-5Sep 22, 2026MaintainedSep 22, 2027claude-opus-5-5No
Active
claude-mythos-5-1Sep 1, 2026MaintainedSep 1, 2027claude-mythos-5-1No
Active
claude-fable-5-1Sep 1, 2026MaintainedSep 1, 2027claude-fable-5-1No
Active
claude-opus-5Jul 24, 2026MaintainedJul 24, 2027claude-opus-5No
Active
claude-sonnet-5Jun 30, 2026MaintainedJun 30, 2027claude-sonnet-5No
Active
claude-mythos-5Jun 9, 2026MaintainedJun 9, 2027claude-mythos-5No
Active
claude-fable-5Jun 9, 2026MaintainedJun 9, 2027claude-fable-5No
Active
claude-opus-4-8May 28, 2026MaintainedMay 28, 2027claude-opus-4-8No
Active
claude-opus-4-7Apr 16, 2026MaintainedApr 16, 2027claude-opus-4-7No
Active
claude-sonnet-4-6Feb 17, 2026MaintainedFeb 17, 2027claude-sonnet-4-6No
Active
claude-opus-4-6Feb 5, 2026MaintainedFeb 5, 2027claude-opus-4-6No
Active
claude-opus-4-5-20251101Nov 24, 2025MaintainedNov 24, 2026claude-opus-4-5-20251101No
Active
claude-haiku-4-5-20251001Oct 15, 2025MaintainedOct 15, 2026claude-haiku-4-5-20251001No
Active
claude-sonnet-4-5-20250929Sep 29, 2025MaintainedSep 29, 2026claude-sonnet-4-5-20250929No
Active
claude-opus-4-1-20250805Aug 5, 2025Jun 5, 2026Aug 5, 2026claude-opus-4-1-20250805No
EOL
claude-sonnet-4-20250514May 22, 2025Apr 14, 2026Jun 15, 2026claude-sonnet-4-20250514No
EOL
claude-opus-4-20250514May 22, 2025Apr 14, 2026Jun 15, 2026claude-opus-4-20250514No
EOL
claude-3-7-sonnet-20250219Feb 24, 2025Oct 28, 2025Feb 19, 2026claude-3-7-sonnet-20250219No
EOL
claude-3-5-haiku-20241022Oct 22, 2024Dec 19, 2025Feb 19, 2026claude-3-5-haiku-20241022No
EOL
claude-3-5-sonnet-20241022Oct 22, 2024Aug 13, 2025Oct 28, 2025claude-3-5-sonnet-20241022No
EOL
claude-3-5-sonnet-20240620Jun 21, 2024Aug 13, 2025Oct 28, 2025claude-3-5-sonnet-20240620No
EOL
claude-3-haiku-20240307Mar 13, 2024Feb 19, 2026Apr 20, 2026claude-3-haiku-20240307No
EOL
claude-3-opus-20240229Mar 4, 2024Jun 30, 2025Jan 5, 2026claude-3-opus-20240229No
EOL
claude-3-sonnet-20240229Mar 4, 2024Jan 21, 2025Jul 21, 2025claude-3-sonnet-20240229No
EOL
claude-2.1Nov 21, 2023Jan 21, 2025Jul 21, 2025claude-2.1No
EOL
claude-instant-1.2Aug 9, 2023Nov 6, 2024Nov 6, 2024claude-instant-1.2No
EOL
claude-2.0Jul 11, 2023Jan 21, 2025Jul 21, 2025claude-2.0No
EOL
claude-1.3Apr 18, 2023Sep 4, 2024Nov 6, 2024claude-1.3No
EOL
claude-instant-1.1Mar 31, 2023Nov 6, 2024Nov 6, 2024claude-instant-1.1No
EOL
claude-1.2Mar 14, 2023Sep 4, 2024Nov 6, 2024claude-1.2No
EOL
claude-1.1Mar 14, 2023Sep 4, 2024Nov 6, 2024claude-1.1No
EOL
claude-instant-1.0Mar 14, 2023Sep 4, 2024Nov 6, 2024claude-instant-1.0No
EOL
claude-1.0Mar 14, 2023Sep 4, 2024Nov 6, 2024claude-1.0No
EOL

Data sources

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Frequently Asked Questions

Which versions of Anthropic Claude have reached end of life?
The following Anthropic Claude versions have reached end of life and no longer receive security updates: claude-opus-4-1-20250805, claude-sonnet-4-20250514, claude-opus-4-20250514, claude-3-7-sonnet-20250219, claude-3-5-haiku-20241022, claude-3-5-sonnet-20241022, claude-3-5-sonnet-20240620, claude-3-haiku-20240307 (and 11 more). It is recommended to upgrade to a supported version.
Is it safe to continue using Anthropic Claude claude-opus-4-1-20250805?
Anthropic Claude claude-opus-4-1-20250805 has reached end of life and no longer receives security patches or bug fixes. Continuing to use it may expose your systems to known vulnerabilities. We strongly recommend upgrading to a supported version.
What is the latest version of Anthropic Claude?
The latest version of Anthropic Claude is claude-opus-5-5, released in the claude-opus-5-5 release cycle.
How many versions of Anthropic Claude are currently supported?
Anthropic Claude currently has 14 actively supported version(s): claude-opus-5-5, claude-mythos-5-1, claude-fable-5-1, claude-opus-5, claude-sonnet-5, claude-mythos-5, claude-fable-5, claude-opus-4-8, claude-opus-4-7, claude-sonnet-4-6, claude-opus-4-6, claude-opus-4-5-20251101, claude-haiku-4-5-20251001, claude-sonnet-4-5-20250929.
When does Anthropic Claude claude-opus-5-5 reach end of life?
Anthropic Claude claude-opus-5-5 is scheduled to reach end of life on Sep 22, 2027.
What should I do when Anthropic Claude reaches end of life?
When a Anthropic Claude version reaches end of life, you should: 1) Plan your migration to a supported version as soon as possible. 2) Review the release notes for breaking changes. 3) Test your applications thoroughly in a staging environment. 4) Update your dependencies to ensure compatibility with the new version.