Guzzle 5 · Version Status
Guzzle 5 End of Life Date
Guzzle 5 end-of-life date, support status, and CVE risk. Data from endoflife.date and official vendor documentation.
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Guzzle 5 is past end of life. This version no longer receives security patches. 2382 days past EOL — migrate to a supported version immediately.
EOL Date
Oct 31, 2019
2382 days past EOL
Latest Release
5.3.4
Standard release
Release Date
Oct 12, 2014
Guzzle 5 series
| 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 |
7.10.0 |
EOL |
Active |
What does Guzzle 5 end of life mean?
When Guzzle 5 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: Most vulnerability scanners check for known CVEs but do not flag the ongoing accumulation of unpatched vulnerabilities in EOL software versions. Running Guzzle 5 past its EOL date creates a permanently growing attack surface that standard security tooling will not surface.
Migrate to Guzzle 7 or implement compensating controls — network segmentation, enhanced monitoring, restricted access — while migration is underway.
Frequently Asked Questions
When does Guzzle 5 reach end of life?
Guzzle 5 reached end of life on October 31, 2019. This version is no longer receiving security patches.
Is Guzzle 5 still supported?
No. Guzzle 5 reached end of life on October 31, 2019 and is no longer receiving security patches.
What should I upgrade to from Guzzle 5?
The recommended upgrade from Guzzle 5 is
Guzzle 7 — the latest actively supported version. Check the
Guzzle full timeline for all supported versions.
What are the security risks of running Guzzle 5 past EOL?
When Guzzle 5 reaches end of life, the maintainers stop issuing security patches. Any CVEs disclosed after the EOL date accumulate with no remediation path. Most vulnerability scanners do not flag this — it is the CVE blind spot. Organizations running EOL Guzzle should migrate immediately or implement compensating controls.