Fastify 3 · Version Status
Fastify 3 End of Life Date
Fastify 3 end-of-life date, support status, and CVE risk. Dates read at the vendor's own lifecycle pages (github.com); the source of each date is on the product page.
⚠
Fastify 3 is past end of life. This version no longer receives security patches. 1210 days past EOL — migrate to a supported version immediately.
EOL Date
Jun 30, 2023
1210 days past EOL
Latest Release
3.29.5
Standard release
Release Date
Jul 7, 2020
Fastify 3 series
Where these dates come from
End of lifeJun 30, 2023Our catalog, built from the vendor pages · github.commedium · 1 source agrees ReleaseJul 7, 2020Our catalog, built from the vendor pages · github.commedium · 1 source agrees Confidence: high = two or more independent sources agree (the vendor's page read by our adapter, a person's check against the vendor, the dataset the date came from); medium = one; low = the vendor page disagrees or our last read is stale.
How we source dates.
Lifecycle detail
Fastify 3 was released on July 7, 2020 and support ended on June 30, 2023 — a supported lifespan of 3 years, in line with the 3 years median for Fastify releases. The last patch it will ever receive is 3.29.5, published January 21, 2023 — 5 months before support ended. It has been without security patches for 3 years and 4 months. 1 newer Fastify release has shipped since.
Attack Surface
10/30 Medium tier
CISA KEV Exposure
0/20 Not in KEV
Extended Support
0/10 Available
EOL Risk Score™ — proprietary methodology by endoflife.ai. Factors: EOL recency, attack surface breadth, CISA KEV catalog presence, extended support availability. Updated at every build.
Methodology → ·
View score card →
Extended Support
Extended Fastify 3 support options
Some vendors and third parties sell security patches beyond end of life; whether one covers this version varies. Right now that coverage spans Fastify 3.x. Compare your options.
Compare Options →
| Version | Latest | EOL Date | Status |
|---|
| 1 |
1.14.6 |
Sep 1, 2019 |
EOL |
| 2 |
2.15.3 |
Jan 31, 2021 |
EOL |
| → 3 |
3.29.5 |
Jun 30, 2023 |
EOL |
| 4 |
4.29.1 |
Jun 30, 2025 |
EOL |
| 5 |
5.12.7 |
EOL |
Active |
What does Fastify 3 end of life mean?
When Fastify 3 reaches end of life, the maintainers stop issuing security patches for this version. CVEs discovered after the EOL date are publicly disclosed on the National Vulnerability Database with no patch available. Exploit code frequently appears on GitHub within days of disclosure.
The CVE blind spot: A CVE-based scan does not show the ongoing accumulation of unpatched vulnerabilities in EOL software versions. Some scanners flag unsupported versions of common products, but coverage varies, and none of them give you the date in advance. Running Fastify 3 past its EOL date creates a growing attack surface that a clean scan result does not rule out.
Migrate to Fastify 5 or implement compensating controls — network segmentation, enhanced monitoring, restricted access — while migration is underway.
Frequently Asked Questions
When does Fastify 3 reach end of life?
Fastify 3 reached end of life on June 30, 2023. This version is no longer receiving security patches.
Is Fastify 3 still supported?
No. Fastify 3 reached end of life on June 30, 2023 and is no longer receiving security patches.
What should I upgrade to from Fastify 3?
The recommended upgrade from Fastify 3 is
Fastify 5 — the latest actively supported version. Check the
Fastify full timeline for all supported versions.
What are the security risks of running Fastify 3 past EOL?
Since Fastify 3 reached end of life, the maintainers no longer issue security patches. Any CVEs disclosed after the EOL date accumulate with no vendor fix. A CVE-based scan does not show this — it is the CVE blind spot; some scanners flag unsupported versions of common products, but coverage varies and none give the date in advance. Organizations running EOL Fastify should migrate immediately or implement compensating controls.