Bootstrap End of Life Dates

framework

Developers working on front-end web development projects often require a reliable and efficient framework to create responsive, mobile-first designs. Bootstrap, a free and open-source CSS framework, has been a go-to solution since its creation, providing a comprehensive set of HTML, CSS, and JavaScript-based design templates for various interface components. Maintained by a community of dedicated developers, Bootstrap has become a staple in the web development ecosystem, with its versatility and customizability making it a favorite among developers.

The end-of-life landscape for Bootstrap is characterized by a total of four versions, with three of them having already reached their end-of-life. The last version to reach its end-of-life was version 4, which occurred on January 1, 2023. Currently, only one version of Bootstrap remains active, with no announced end-of-life date. This means that developers can continue to use and rely on the latest stable version, 5.3.8, without worrying about immediate support cessation. The lack of announced end-of-life dates for the active version provides developers with a sense of stability and continuity.

From a security perspective, Bootstrap has an impressive track record, with a total of zero CVEs tracked, and consequently, zero critical CVEs. This means that developers using Bootstrap do not have to worry about known security vulnerabilities in the framework. As a result, no specific version is deemed most affected, and there is no need for immediate action to address security concerns. With its clean security slate and active maintenance, Bootstrap remains a secure and reliable choice for developers, allowing them to focus on building robust and responsive web applications without undue security concerns.

Last updated: Jul 24, 2026

VersionReleasedActive supportEOL dateUntil EOLLatestCVEsStatusAlert me
5 LTSMay 5, 2021No5.3.8Active
4 LTSJan 18, 2018Nov 1, 2021Jan 1, 20231300d ago4.6.2EOL
3 LTSAug 19, 2013Sep 5, 2016Jul 24, 20192557d ago3.4.1EOL
2 Jan 31, 2012Aug 19, 2013Aug 19, 20134722d ago2.3.2EOL

Data sourced from endoflife.date · CVE data from NVD

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