Symfony 2.8 LTS ended November 1, 2019, 3.4 on November 1, 2021, 4.4 on November 21, 2023. Today's LTS lines: 5.4 (security fixes only, to February 28, 2029), 6.4 (bug fixes to November 30, 2026, security to November 30, 2027) and 7.4 (to November 30, 2029); Symfony 8.0 ended July 31, 2026. Every release's dates, the six-month/two-year rule, how to check your version, and the LTS-to-LTS upgrade path.
Symfony EOL Risk Scores
| Version | EOL Risk Score | What drives it |
|---|---|---|
| Symfony 2.8 | 50 | End of life November 1, 2019 — recency at maximum; web-framework attack surface; commercial support exists. |
| Symfony 8.0 | 35 | Standard release, end of life July 31, 2026 — a dead version newer than the supported LTS lines. |
| Symfony 6.4 | 10 | LTS, security fixes to November 30, 2027. |
| Symfony 7.4 | 10 | Current LTS, security fixes to November 30, 2029. |
What's covered
- Key Dates at a Glance
- Symfony EOL Risk Scores
- Every Symfony Release: Support Dates
- How the Symfony Release Cycle Works
- The Three LTS Lines Today
- Symfony 2.8, 3.4 and 4.4 — End of Life
- How to Check Your Symfony Version
- Your Options When a Symfony Version Reaches End of Life
Full guide with every version, risk scores, and live updates: https://endoflife.ai/article-symfony-eol
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