Guzzle 3 · Version Status
Guzzle 3 End of Life Date
Guzzle 3 end-of-life date, support status, and CVE risk. Data reconciled from official vendor documentation and endoflife.date at every build; the source of each date is on the product page.
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Guzzle 3 is past end of life. This version no longer receives security patches. 3659 days past EOL — migrate to a supported version immediately.
EOL Date
Oct 31, 2016
3659 days past EOL
Latest Release
3.8.1
Standard release
Release Date
Oct 15, 2012
Guzzle 3 series
Where these dates come from
End of lifeOct 31, 2016endoflife.date (open dataset) · endoflife.datemedium · 1 source agrees ReleaseOct 15, 2012endoflife.date (open dataset) · endoflife.datemedium · 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
Guzzle 3 was released on October 15, 2012 and support ended on October 31, 2016 — a supported lifespan of 4 years and 1 month, shorter than the 5 years and 1 month median for Guzzle releases. Its latest release on record is 3.8.1, published January 28, 2014 — 2 years and 9 months before support ended. It has been past its end-of-life date for 10 years. 2 newer Guzzle releases have 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 Guzzle 3 support options
Some vendors and third parties sell security patches beyond end of life; whether one covers this version varies. Compare your options.
Compare Options →
| Version | Latest | EOL Date | Status |
|---|
| → 3 |
3.8.1 |
Oct 31, 2016 |
EOL |
| 4 |
4.2.4 |
Oct 31, 2016 |
EOL |
| 5 |
5.3.4 |
Oct 31, 2019 |
EOL |
| 6 |
6.5.8 |
Oct 31, 2023 |
EOL |
| 7 |
7.16.1 |
EOL |
Active |
| 8 |
8.3.1 |
EOL |
Active |
What does Guzzle 3 end of life mean?
When Guzzle 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 Guzzle 3 past its EOL date creates a growing attack surface that a clean scan result does not rule out.
Migrate to Guzzle 8 or implement compensating controls — network segmentation, enhanced monitoring, restricted access — while migration is underway.
Frequently Asked Questions
When does Guzzle 3 reach end of life?
Guzzle 3 reached end of life on October 31, 2016. This version is no longer receiving security patches.
Is Guzzle 3 still supported?
No. Guzzle 3 reached end of life on October 31, 2016 and is no longer receiving security patches.
What should I upgrade to from Guzzle 3?
The recommended upgrade from Guzzle 3 is
Guzzle 8 — the latest actively supported version. Check the
Guzzle full timeline for all supported versions.
What are the security risks of running Guzzle 3 past EOL?
Since Guzzle 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 Guzzle should migrate immediately or implement compensating controls.