Modernizr End of Life (EOL) Dates & Support Timeline
Complete end-of-life dates, support windows, and security status for all Modernizr versions. Data sourced from endoflife.date and official vendor documentation. Updated at every deploy.
Modernizr 3.13 is supported, with no end-of-life or end-of-support date announced yet. The full Modernizr lifecycle, with every version's release and end-of-support date, is in the table below.
Running an EOL version? Get matched with support options — free ↓| Version | Latest Release | Release Date | EOL Date | Days | Status |
|---|---|---|---|---|---|
| 2.5 | 2.5.3 | Feb 6, 2012 | TBD | Supported | Active |
| 2.6 | 2.6.3 | Jul 19, 2012 | TBD | Supported | Active |
| 2.7 | 2.7.2 | Nov 15, 2013 | TBD | Supported | Active |
| 2.8 | 2.8.3 | Apr 29, 2014 | TBD | Supported | Active |
| 3.0 | 3.0.0 | Sep 12, 2015 | TBD | Supported | Active |
| 3.1 | 3.1.0 | Oct 6, 2015 | TBD | Supported | Active |
| 3.2 | 3.2.0 | Oct 29, 2015 | TBD | Supported | Active |
| 3.3 | 3.3.1 | Jan 11, 2016 | TBD | Supported | Active |
| 3.4 | 3.4.0 | Mar 15, 2017 | TBD | Supported | Active |
| 3.5 | 3.5.0 | Apr 13, 2017 | TBD | Supported | Active |
| 3.6 | 3.6.0 | Mar 5, 2018 | TBD | Supported | Active |
| 3.7 | 3.7.1 | Feb 26, 2019 | TBD | Supported | Active |
| 3.8 | 3.8.0 | Oct 24, 2019 | TBD | Supported | Active |
| 3.9 | 3.9.1 | Feb 4, 2020 | TBD | Supported | Active |
| 3.10 | 3.10.0 | Apr 7, 2020 | TBD | Supported | Active |
| 3.11 | 3.11.8 | Apr 27, 2020 | TBD | Supported | Active |
| 3.12 | 3.12.0 | Feb 15, 2022 | TBD | Supported | Active |
| 3.13 | 3.13.1 | Aug 15, 2023 | TBD | Supported | Active |
Live EOL badge for your README — updates automatically at every build.
[](https://endoflife.ai/modernizr)
Modernizr lifecycle status — the real story
Modernizr, the JavaScript feature-detection library (Modernizr/Modernizr on GitHub, npm package modernizr); one line per minor version. The 3.x lines use the npm registry publish dates from registry.npmjs.org/modernizr (read 2026-09-10; 3.13.1 is the latest, August 2024). The 2.x lines (2.5 through 2.8) predate the npm package, which starts at 3.0.0-pre, so their dates are the commit dates of the project GitHub tags v2.5.0 through v2.8.3 (read 2026-09-10); 2.6 is listed from its earliest tag, v2.6.1, because the repository has no v2.6.0 tag, and lines before 2.5 (a lone v2.0.6 tag and the non-semver v1.x tags) are not listed. The project publishes no support policy or end dates for any line: nothing in the README, the 3.0 release announcement or the repository says the 2.x line is closed, so no end dates are shown even though the last 2.x release is from July 2014.
Commercial context: HeroDevs Never-Ending Support lists NPM Modernizr 2.8.x (package @neverendingsupport/npm-modernizr, verified at docs.herodevs.com/npm-modernizr 2026-09-10). The package it replaces, npm-modernizr, is a third-party republish of the Modernizr 2.8.3 build on npm (one version, published 2015-12-01), not the project own modernizr package; it maps to the 2.8 line here.
Modernizr release and support pattern
Across the 18 release lines with a published release date, Modernizr has shipped a new line roughly every 5 months (median interval).
Of the 18 release lines tracked, 0 are past end of life and 18 are still within support. The newest line, 3.13, was released August 15, 2023. No end-of-life date is currently published for the 18 supported lines.
Computed from the tracked release data at every build — the figures above are the dates in the table, restated, not an editorial estimate.
What does Modernizr end of life mean for your organization?
When a version of Modernizr 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 Modernizr 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.
Your options when Modernizr reaches end of life
There are four realistic paths. Which one is right depends far more on how long the system needs to keep running than on the version you are on today.
| Option | Best when | Watch out for |
|---|---|---|
| Move to a supported version | The system will outlive the current version's support window and you can schedule the work | Budget for compatibility testing, not just the upgrade itself — that is where the real cost sits |
| Replace the component | The project is unmaintained, or a better-supported alternative exists | The replacement has its own lifecycle and its own end-of-life date — you are changing vendors, not escaping the problem |
| Buy extended support | Migration is genuinely underway but cannot finish before the deadline, or the workload is frozen by certification or a third-party application | A bridge, not a destination — every year purchased is a year the migration still has to happen |
| Document accepted risk | The system is isolated, short-lived, or scheduled for retirement | Only defensible with real compensating controls and a written decision — auditors treat undocumented end-of-life software as a finding |
How to choose, in one question: how many more years does this system need to run? Under a year, extended support (where it exists) is usually cheaper than an emergency migration. One to three years, migrate — support purchased repeatedly costs more than doing the project once, and the project only gets harder as the version ages. Indefinitely, migrate now and plan the next migration before it surprises you.
Worth saying plainly, because vendors selling extended support rarely will: extended support is often the more expensive choice over a multi-year horizon. It is the right answer when a deadline is genuinely unreachable, not as a default. Compare the annual fee against the one-time cost of migrating before committing to either.
Formalizing decisions like this across your estate? Our free EOL policy template is a ready-to-adopt policy with risk tiers, remediation SLAs, and audit mapping — no signup, free to use and share.
Extended Support Options
If you cannot migrate immediately, extended support vendors provide continued security patches for EOL Modernizr versions. This is a bridge, not a permanent solution — plan your migration in parallel.
When Modernizr versions reach end of life, security patches stop — the CVEs keep coming. The good news: extended support for Modernizr exists — vetted vendors ship security patches for years past the official date. Right now that coverage spans Modernizr 2.x. Tell us where to reach you and we'll reply with matched options and pricing guidance — or an honest "no vendor covers this."