LoopBack End of Life (EOL) Dates & Support Timeline
Complete end-of-life dates, support windows, and security status for all LoopBack versions. Data sourced from endoflife.date and official vendor documentation. Updated at every deploy.
| Version | Latest Release | Release Date | EOL Date | Days | Status |
|---|---|---|---|---|---|
| 2 | 2.42.0 | Jul 22, 2014 | Apr 30, 2019 | 2626 days past EOL | EOL |
| 3 | 3.28.0 | Sep 22, 2016 | Dec 31, 2020 | 2015 days past EOL | EOL |
LoopBack lifecycle status — the real story
LoopBack's legacy lines have unambiguous, officially published end-of-life dates: LoopBack 2 reached EOL in April 2019 and LoopBack 3 in December 2020 under the project's long-term support policy. The successor, LoopBack 4, is a ground-up rewrite in TypeScript with different package names (@loopback/*) — there is no in-place upgrade, only migration.
That migration cliff is why a striking number of production REST APIs still run LoopBack 3 more than five years past EOL. Every dependency in that stack (Express 4-era middleware, old juggler ORM releases) aged out alongside it, compounding the unpatched surface.
IBM/StrongLoop's LTS documentation remains the authoritative reference, and commercial extended-support vendors service the stranded LoopBack 2/3 base — a strong indicator of how much of it is still running.
What does LoopBack end of life mean for your organization?
When a version of LoopBack 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 LoopBack 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 LoopBack 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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