Complete end-of-life dates, support windows, and security status for all Symfony versions. Data sourced from endoflife.date and official vendor documentation. Updated at every deploy.
| Version | Latest Release | Release Date | EOL Date | Days | Status |
|---|---|---|---|---|---|
| 2.3 LTS | 2.3.42 | Jun 3, 2013 | May 1, 2017 | 3295 days past EOL | EOL |
| 2.7 LTS | 2.7.52 | May 30, 2015 | May 1, 2019 | 2565 days past EOL | EOL |
| 2.8 LTS | 2.8.52 | Nov 30, 2015 | Nov 1, 2019 | 2381 days past EOL | EOL |
| 3.0 | 3.0.9 | Nov 30, 2015 | Jan 1, 2017 | 3415 days past EOL | EOL |
| 3.1 | 3.1.10 | May 30, 2016 | Jul 1, 2017 | 3234 days past EOL | EOL |
| 3.2 | 3.2.14 | Nov 30, 2016 | Jan 1, 2018 | 3050 days past EOL | EOL |
| 3.3 | 3.3.18 | May 29, 2017 | Jul 1, 2018 | 2869 days past EOL | EOL |
| 3.4 LTS | 3.4.49 | Nov 30, 2017 | Nov 1, 2021 | 1650 days past EOL | EOL |
| 4.0 | 4.0.15 | Nov 30, 2017 | Jan 1, 2019 | 2685 days past EOL | EOL |
| 4.1 | 4.1.13 | May 30, 2018 | Jul 1, 2019 | 2504 days past EOL | EOL |
| 4.2 | 4.2.12 | Nov 30, 2018 | Jan 1, 2020 | 2320 days past EOL | EOL |
| 4.3 | 4.3.11 | May 30, 2019 | Jul 1, 2020 | 2138 days past EOL | EOL |
| 4.4 LTS | 4.4.51 | Nov 21, 2019 | Nov 21, 2023 | 900 days past EOL | EOL |
| 5.0 | 5.0.11 | Nov 21, 2019 | Jul 21, 2020 | 2118 days past EOL | EOL |
| 5.1 | 5.1.11 | May 31, 2020 | Jan 21, 2021 | 1934 days past EOL | EOL |
| 5.2 | 5.2.14 | Nov 30, 2020 | Jul 21, 2021 | 1753 days past EOL | EOL |
| 5.3 | 5.3.16 | May 31, 2021 | Jan 1, 2022 | 1589 days past EOL | EOL |
| 5.4 LTS | 5.4.51 | Nov 29, 2021 | Feb 28, 2029 | 1026 days remaining | Active |
| 6.0 | 6.0.20 | Nov 29, 2021 | Jan 31, 2023 | 1194 days past EOL | EOL |
| 6.1 | 6.1.12 | May 27, 2022 | Jan 31, 2023 | 1194 days past EOL | EOL |
| 6.2 | 6.2.14 | Nov 30, 2022 | Jul 31, 2023 | 1013 days past EOL | EOL |
| 6.3 | 6.3.12 | May 30, 2023 | Jan 31, 2024 | 829 days past EOL | EOL |
| 6.4 LTS | 6.4.38 | Nov 29, 2023 | Nov 30, 2027 | 570 days remaining | Active |
| 7.0 | 7.0.10 | Nov 29, 2023 | Jul 31, 2024 | 647 days past EOL | EOL |
| 7.1 | 7.1.11 | May 31, 2024 | Jan 31, 2025 | 463 days past EOL | EOL |
| 7.2 | 7.2.9 | Nov 29, 2024 | Jul 31, 2025 | 282 days past EOL | EOL |
| 7.3 | 7.3.11 | May 29, 2025 | Jan 31, 2026 | 98 days past EOL | EOL |
| 7.4 LTS | 7.4.10 | Nov 27, 2025 | Nov 30, 2029 | 1301 days remaining | Active |
| 8.0 | 8.0.10 | Nov 27, 2025 | Jul 31, 2026 | 83 days remaining | Warning |
When a Symfony version reaches end of life, the maintainers stop issuing security patches. Vulnerabilities discovered after this date are publicly disclosed on the National Vulnerability Database, exploit code appears on GitHub, and your systems remain permanently exposed.
The CVE blind spot: Most vulnerability scanners check for known CVEs but do not flag the accumulation of unpatched vulnerabilities in EOL software. With a zero-day, nobody knows about the vulnerability. With EOL software, the vulnerability is public — listed, rated, and often weaponized — but no patch will ever exist. This is the most dangerous gap in enterprise security posture.
Organizations running EOL Symfony should treat it as a vulnerability class in their risk register, apply compensating controls (network segmentation, enhanced monitoring, access restriction), and prioritize migration to a supported version.
Upload requirements.txt, package.json, or Gemfile — full EOL report instantly.
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