Symfony 5.1+PHP 8.3

Why?

Why is Symfony 5.1 compatible with PHP 8.3?

Requirement

PHP >=7.2.5

Selected version

PHP 8.3

Evaluation

8.3.33 satisfies >=7.2.5

Conclusion

COMPATIBLE

Evidence

CompatHub reports compatibility from upstream sources rather than making unsupported claims of its own.

• Symfony releases.json

  Confidence: HIGH

  https://symfony.com/releases.json

  Retrieved 31 August 2026

  Requirement: >=7.2.5

PHP versions

Compatibility is derived from the project's declared PHP requirement (>=7.2.5); it does not mean every version combination has been independently tested.

• 7.1❌
• 7.2✓
• 7.3✓
• 7.4✓
• 8.0✓
• 8.1✓
• 8.2✓
• 8.3✓
• 8.4✓
• 8.5✓

Other PHP versions satisfying this requirement

Symfony 5.1 — compatible PHP lines tracked in CompatHub

• ✓PHP 7.2version lineEOL
• ✓PHP 7.3version lineEOL
• ✓PHP 7.4version lineEOL
• ✓PHP 8.0version lineEOL
• ✓PHP 8.1version lineEOL
• ✓PHP 8.2version linesupported
• ✓PHP 8.3version linesupported
• ✓PHP 8.4version linesupported
• ✓PHP 8.5version linesupported

Other Symfony versions

Only lines with relevant compatibility evidence are listed.

• Symfony 8.1
• Symfony 8.0
• Symfony 7.4
• Symfony 7.3
• Symfony 7.2
• Symfony 7.1
• Symfony 7.0
• Symfony 6.4
• Symfony 6.3
• Symfony 6.2
• Symfony 6.1
• Symfony 6.0
• Symfony 5.4
• Symfony 5.3
• Symfony 5.2
• Symfony 5.1
• Symfony 5.0
• Symfony 4.4
• Symfony 4.3
• Symfony 4.2
• Symfony 4.1
• Symfony 4.0
• Symfony 3.4

Lifecycle context

Lifecycle status is separate from compatibility. An EOL component can still satisfy a documented version requirement.

Supported alternatives

PHP lines that satisfy this requirement and are still supported.

• PHP 8.2supported
• PHP 8.3supported
• PHP 8.4supported
• PHP 8.5supported