Vigia

Red Hat OpenShift 4.21 end of life (EOL) date and support status

Security fixes only Receives fixes until 2027-08-03 (in 299 days)

Red Hat OpenShift 4.21 only receives security fixes until 2027-08-03; plan an upgrade to 4.22.

ProductRed Hat OpenShift
Version cycle4.21
StatusSecurity fixes only
Released2025-10-21
Active support until2026-09-09
End of life2027-08-03
Latest version4.21.35 (2026-09-29)
Last verified2026-10-08

All Red Hat OpenShift versions → · Source: endoflife.date

Frequently asked questions

Is Red Hat OpenShift 4.21 end of life?

Not yet, but active support has ended: Red Hat OpenShift 4.21 only receives security fixes until 2027-08-03.

When does Red Hat OpenShift 4.21 reach end of life?

Red Hat OpenShift 4.21 reaches end of life on 2027-08-03.

When was Red Hat OpenShift 4.21 released?

Red Hat OpenShift 4.21 was first released on 2025-10-21.

What is the latest Red Hat OpenShift 4.21 version?

The latest 4.21 release is 4.21.35, published on 2026-09-29.

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/red-hat-openshift/4.21