Symfony 6.x — End of Life
ActiveSymfony 6.x is partially supported: only 6.4 still receives security fixes until Nov 30, 2027, in 403 days. The most recent release in this series is 6.4.48. No CVE is currently tracked for Symfony 6.x. The next major version is Symfony 7. See Symfony 7 →
Symfony 6.x — All releases
| Version | Released | Active support | EOL date | Latest patch | Status | Alert me |
|---|---|---|---|---|---|---|
| 6.4LTS | Nov 29, 2023 | Nov 30, 2026 | Nov 30, 2027 | 6.4.48 | Active | |
| 6.3 | May 30, 2023 | Jan 31, 2024 | Jan 31, 2024 | 6.3.12 | EOL | |
| 6.2 | Nov 30, 2022 | Jul 31, 2023 | Jul 31, 2023 | 6.2.14 | EOL | |
| 6.1 | May 27, 2022 | Jan 31, 2023 | Jan 31, 2023 | 6.1.12 | EOL | |
| 6.0 | Nov 29, 2021 | Jan 31, 2023 | Jan 31, 2023 | 6.0.20 | EOL |
CVEs affecting Symfony 6.x (0)
Symfony 6.x will reach end of life — migrate to Symfony 7.x
Symfony 7.x is the next major release. Plan your upgrade before Symfony 6.x stops receiving security patches.
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[](https://eolcanary.com/explore/symfony/6)Frequently asked questions
Is Symfony 6 end of life?
Partially. 4 of the 5 Symfony 6.x releases have reached end of life. Still supported: 6.4 (until November 30, 2027 at the latest).
What CVEs affect Symfony 6?
No CVEs are currently tracked for Symfony 6.x in the NVD data we monitor.
What is the latest Symfony 6 version?
The latest Symfony 6.x patch release is 6.4.48, released on October 14, 2026. Always run the latest patch to benefit from all security fixes.
How to migrate from Symfony 6 to Symfony 7?
To migrate from Symfony 6 to Symfony 7: (1) review the official Symfony 7 migration guide for breaking changes, (2) update dependencies and configuration accordingly, (3) test thoroughly in a staging environment, (4) deploy with a rollback plan. Starting early gives you time to resolve compatibility issues before your current version reaches end of life.
Is it safe to run Symfony 6 in production?
Only on a supported release (6.4). Support for Symfony 6.4 ends on November 30, 2027. Make sure you run the latest patch (6.4.48) to have all security fixes applied.
Data sourced from endoflife.date · CVE data from NVD · EPSS from FIRST.org · KEV from CISA