Phoenix Framework 1.5 · Version Status

Phoenix Framework 1.5 End of Life Date

Phoenix Framework 1.5 end-of-life date, support status, and CVE risk. Data from endoflife.date and official vendor documentation.

Phoenix Framework 1.5 is actively supported. EOL date: Already EOL.
EOL Date
Already EOL
Supported
Latest Release
1.5.14
Standard release
Release Date
Apr 22, 2020
Phoenix Framework 1.5 series
← Phoenix Framework 1.4 All Phoenix Framework versions Phoenix Framework 1.6 →
All Phoenix Framework Versions
VersionLatestEOL DateStatus
1.0 1.0.6 Mar 14, 2017 EOL
1.1 1.1.9 May 15, 2017 EOL
1.2 1.2.5 Jul 28, 2017 EOL
1.3 1.3.5 Feb 24, 2023 EOL
1.4 1.4.18 Aug 5, 2025 EOL
1.5 1.5.14 EOL Active
1.6 1.6.16 EOL Active
1.7 1.7.23 EOL Active

What does Phoenix Framework 1.5 end of life mean?

When Phoenix Framework 1.5 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 Phoenix Framework 1.5 past its EOL date creates a permanently growing attack surface that standard security tooling will not surface.

Migrate to Phoenix Framework 1.8 or implement compensating controls — network segmentation, enhanced monitoring, restricted access — while migration is underway.

Frequently Asked Questions
When does Phoenix Framework 1.5 reach end of life?
Phoenix Framework 1.5 has already reached end of life.
Is Phoenix Framework 1.5 still supported?
Yes, Phoenix Framework 1.5 is currently supported. The EOL date is Already EOL.
What should I upgrade to from Phoenix Framework 1.5?
The recommended upgrade from Phoenix Framework 1.5 is Phoenix Framework 1.8 — the latest actively supported version. Check the Phoenix Framework full timeline for all supported versions.
What are the security risks of running Phoenix Framework 1.5 past EOL?
When Phoenix Framework 1.5 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 Phoenix Framework should migrate immediately or implement compensating controls.
Data from endoflife.date API · Generated at build time · How we source data →