Anthropic Claude claude-1.1 end of life (EOL) date and support status
End of life End of life since 2024-11-06 (701 days ago)
Upgrade: Anthropic Claude claude-1.1 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-1.1 |
| Status | End of life |
| Released | 2023-03-14 |
| Active support until | 2024-09-04 |
| End of life | 2024-11-06 |
| Latest version | — |
| Last verified | 2026-10-08 |
All Anthropic Claude versions → · Source: endoflife.date
Frequently asked questions
Is Anthropic Claude claude-1.1 end of life?
Yes. End of life since 2024-11-06 (701 days ago). It no longer receives security or bug fixes.
When does Anthropic Claude claude-1.1 reach end of life?
Anthropic Claude claude-1.1 reached end of life on 2024-11-06.
When was Anthropic Claude claude-1.1 released?
Anthropic Claude claude-1.1 was first released on 2023-03-14.
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
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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-1.1