Anthropic Claude claude-sonnet-4-5-20250929

security fixes onlyactive support ended 2026-09-30

Anthropic Claude claude-sonnet-4-5-20250929 reaches end of life in 1 month.

Facts

Released
(12 months ago)
Active support ended
(24 days ago)
Security support ends
(in 1 month)
Source
endoflife.date (checked 2026-09-09)

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