Vigia

Bootstrap 4 end of life (EOL) date and support status

End of life End of life since 2023-01-01 (1376 days ago)

Upgrade: Bootstrap 4 no longer receives fixes. Supported cycles: 5.

ProductBootstrap
Version cycle4
StatusEnd of life
Released2018-01-18
LTSsince 2019-11-26
Active support until2021-11-01
End of life2023-01-01
Latest version4.6.2 (2022-07-19)
Last verified2026-10-08

All Bootstrap versions → · Source: endoflife.date

Frequently asked questions

Is Bootstrap 4 end of life?

Yes. End of life since 2023-01-01 (1376 days ago). It no longer receives security or bug fixes.

When does Bootstrap 4 reach end of life?

Bootstrap 4 reached end of life on 2023-01-01.

When was Bootstrap 4 released?

Bootstrap 4 was first released on 2018-01-18.

What is the latest Bootstrap 4 version?

The latest 4 release is 4.6.2, published on 2022-07-19.

Is Bootstrap 4 an LTS release?

Yes, long-term support started on 2019-11-26.

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/bootstrap/4