Bootstrap End of Life (EOL) Dates & Support Timeline
Complete end-of-life dates, support windows, and security status for all Bootstrap versions. Data sourced from endoflife.date and official vendor documentation. Updated at every deploy.
| Version | Latest Release | Release Date | EOL Date | Days | Status |
|---|---|---|---|---|---|
| 2 | 2.3.2 | Jan 31, 2012 | Aug 19, 2013 | 4691 days past EOL | EOL |
| 3 LTS | 3.4.1 | Aug 19, 2013 | Jul 24, 2019 | 2526 days past EOL | EOL |
| 4 LTS | 4.6.2 | Jan 18, 2018 | Jan 1, 2023 | 1269 days past EOL | EOL |
| 5 LTS | 5.3.8 | May 5, 2021 | TBD | Supported | Active |
What does Bootstrap end of life mean for your organization?
When a version of Bootstrap reaches end of life, the maintainers stop issuing security patches. Vulnerabilities discovered after this date are publicly disclosed on the National Vulnerability Database, exploit code appears on GitHub, and your systems remain permanently exposed.
The CVE blind spot: Most vulnerability scanners check for known CVEs but do not flag the accumulation of unpatched vulnerabilities in EOL software. With a zero-day, nobody knows about the vulnerability. With EOL software, the vulnerability is public — listed, rated, and often weaponized — but no patch will ever exist. This is the most dangerous gap in enterprise security posture.
Organizations running EOL Bootstrap should treat it as a vulnerability class in their risk register, apply compensating controls (network segmentation, enhanced monitoring, access restriction), and prioritize migration to a supported version.
Extended Support Options
If you cannot migrate immediately, extended support vendors provide continued security patches for EOL Bootstrap versions. This is a bridge, not a permanent solution — plan your migration in parallel.
We work with vetted extended support vendors. Tell us what you need and we'll connect you with the right provider.
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