Anthropic Claude claude-3-opus-20240229 end of life (EOL) date and support status
End of life End of life since 2026-01-05 (276 days ago)
Upgrade: Anthropic Claude claude-3-opus-20240229 no longer receives fixes. Supported cycles: claude-sonnet-5-5, 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.
| Product | Anthropic Claude |
|---|---|
| Version cycle | claude-3-opus-20240229 |
| Status | End of life |
| Released | 2024-03-04 |
| Active support until | 2025-06-30 |
| End of life | 2026-01-05 |
| Latest version | — |
| Last verified | 2026-10-08 |
All Anthropic Claude versions → · Source: endoflife.date
Frequently asked questions
Is Anthropic Claude claude-3-opus-20240229 end of life?
Yes. End of life since 2026-01-05 (276 days ago). It no longer receives security or bug fixes.
When does Anthropic Claude claude-3-opus-20240229 reach end of life?
Anthropic Claude claude-3-opus-20240229 reached end of life on 2026-01-05.
When was Anthropic Claude claude-3-opus-20240229 released?
Anthropic Claude claude-3-opus-20240229 was first released on 2024-03-04.
Give your AI agent these facts
Vigia is a free MCP server: your coding agent checks versions, breaking changes and vulnerabilities before it writes code. No signup, no API key.
claude mcp add --transport http vigia https://vigia.coredls.cloud/mcp
Add to CursorAdd to VS Code★ Star on GitHub
Any other MCP client
{ "mcpServers": { "vigia": { "url": "https://vigia.coredls.cloud/mcp" } } }Agent skill (SKILL.md): tells the agent when to use Vigia · GitHub Action for pull requests
For agents
GET https://vigia.coredls.cloud/v1/eol/claude/claude-3-opus-20240229