Claude (Anthropic) claude-opus-4-5-20251101 · Version Status
Claude (Anthropic) claude-opus-4-5-20251101 End of Life Date
Claude (Anthropic) claude-opus-4-5-20251101 end-of-life date, support status, and CVE risk. Data from endoflife.date and official vendor documentation.
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Claude (Anthropic) claude-opus-4-5-20251101 reaches end of life on November 24, 2026. Plan your migration now — 154 days remaining.
📅 Get reminded before Claude (Anthropic) claude-opus-4-5-20251101 reaches EOL on November 24, 2026 — alerts 90, 30 & 7 days out.
EOL Date
Nov 24, 2026
154 days remaining
Latest Release
—
Standard release
Release Date
Nov 24, 2025
Claude (Anthropic) claude-opus-4-5-20251101 series
Attack Surface
20/30 High tier
CISA KEV Exposure
0/20 Not in KEV
Extended Support
10/10 None available
EOL Risk Score™ — proprietary methodology by endoflife.ai. Factors: EOL recency, attack surface breadth, CISA KEV catalog presence, extended support availability. Updated at every build.
Methodology → ·
View score card →
All Claude (Anthropic) Versions
What does Claude (Anthropic) claude-opus-4-5-20251101 end of life mean?
When Claude (Anthropic) claude-opus-4-5-20251101 reaches end of life, the maintainers stop issuing security patches for this version. CVEs discovered after the EOL date are publicly disclosed on the National Vulnerability Database with no patch available. Exploit code frequently appears on GitHub within days of disclosure.
The CVE blind spot: Most vulnerability scanners check for known CVEs but do not flag the ongoing accumulation of unpatched vulnerabilities in EOL software versions. Running Claude (Anthropic) claude-opus-4-5-20251101 past its EOL date creates a permanently growing attack surface that standard security tooling will not surface.
Migrate to Claude (Anthropic) claude-opus-4-8 or implement compensating controls — network segmentation, enhanced monitoring, restricted access — while migration is underway.
Frequently Asked Questions
When does Claude (Anthropic) claude-opus-4-5-20251101 reach end of life?
Claude (Anthropic) claude-opus-4-5-20251101 reached end of life on November 24, 2026. That is 154 days remaining.
Is Claude (Anthropic) claude-opus-4-5-20251101 still supported?
Claude (Anthropic) claude-opus-4-5-20251101 is still supported but approaching end of life on November 24, 2026. Begin planning your migration now.
What should I upgrade to from Claude (Anthropic) claude-opus-4-5-20251101?
The recommended upgrade from Claude (Anthropic) claude-opus-4-5-20251101 is
Claude (Anthropic) claude-opus-4-8 — the latest actively supported version. Check the
Claude (Anthropic) full timeline for all supported versions.
What are the security risks of running Claude (Anthropic) claude-opus-4-5-20251101 past EOL?
When Claude (Anthropic) claude-opus-4-5-20251101 reaches end of life, the maintainers stop issuing security patches. Any CVEs disclosed after the EOL date accumulate with no remediation path. Most vulnerability scanners do not flag this — it is the CVE blind spot. Organizations running EOL Claude (Anthropic) should migrate immediately or implement compensating controls.