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BootstrapEnd of Life (EOL) Dates & Support Status
Active
Libraries & SDKsLatest Version: 5.3.8Latest Release: Aug 25, 2025
Bootstrap is the world's most popular CSS framework for responsive, mobile-first front-end development.
Support summary
Bootstrap currently has supported cycles. Track the next EOL date and validate upgrades before your change window.
What do EOL and support statuses mean?Next EOL
No announced EOL date is currently listed.
Supported cycles
1
3 lts
Versions
4
Latest Version
5.3.8
Active Support
1
EOL
3
Lifecycle Timeline
Jan 31, 2012As of Sep 27, 2026
5Active · Date not announced
4EOL · Jan 1, 2023
3EOL · Jul 24, 2019
2EOL · Aug 19, 2013
ActiveSecurityEOLHistorical phase unknown
Bars show history up to the snapshot date. Gray intervals lack dated support boundaries; arrows indicate an unannounced EOL date, not a support guarantee.
Versions
| Release | Release Date | Active Support | EOL | Latest Version | LTS | Status |
|---|---|---|---|---|---|---|
| 5 | May 5, 2021 | Maintained | Date not announced | 5.3.8 | 2022-07-19 | Active |
| 4 | Jan 18, 2018 | Nov 1, 2021 | Jan 1, 2023 | 4.6.2 | 2019-11-26 | EOL |
| 3 | Aug 19, 2013 | Sep 5, 2016 | Jul 24, 2019 | 3.4.1 | 2014-11-01 | EOL |
| 2 | Jan 31, 2012 | Aug 19, 2013 | Aug 19, 2013 | 2.3.2 | No | EOL |
Data sources
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Show Bootstrap's live support status in your README, docs, or dashboard. The badge is a static SVG served from eol.wiki and follows the lifecycle data above.
Markdown
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<a href="https://eol.wiki/bootstrap/"><img src="https://eol.wiki/badge/bootstrap.svg" alt="Bootstrap end-of-life status" height="20"></a>Frequently Asked Questions
Which versions of Bootstrap have reached end of life?
The following Bootstrap versions have reached end of life and no longer receive security updates: 4, 3, 2. It is recommended to upgrade to a supported version.
Is it safe to continue using Bootstrap 4?
Bootstrap 4 has reached end of life and no longer receives security patches or bug fixes. Continuing to use it may expose your systems to known vulnerabilities. We strongly recommend upgrading to a supported version.
What is the latest version of Bootstrap?
The latest version of Bootstrap is 5.3.8, released in the 5 release cycle.
How many versions of Bootstrap are currently supported?
Bootstrap currently has 1 actively supported version(s): 5.
When does Bootstrap 5 reach end of life?
Bootstrap 5 does not have a specific end-of-life date announced yet.
What should I do when Bootstrap reaches end of life?
When a Bootstrap version reaches end of life, you should: 1) Plan your migration to a supported version as soon as possible. 2) Review the release notes for breaking changes. 3) Test your applications thoroughly in a staging environment. 4) Update your dependencies to ensure compatibility with the new version.