When is Symfony 4.0 end of life?

Symfony 4.0 reached end of life on Jan 1, 2019. It gets no more updates, including security fixes.

What is the latest version of Symfony 4.0?

The latest Symfony 4.0 release is 4.0.15, released on Dec 6, 2018.

When was Symfony 4.0 released?

Symfony 4.0 was released on Nov 30, 2017.

How do I check which Symfony version I have?

Run composer show | grep "symfony/", then paste the result into the “Am I up to date?” box on this page.

Symfony 4.0

End of life

4.0.15 Release notes ↗

Is Symfony 4.0 still supported?

Symfony 4.0 reached end of life on Jan 1, 2019 (7 years ago). It no longer gets updates, including security fixes. Upgrade to Symfony 8.1 (latest 8.1.8), supported until Jan 31, 2027.

Released: Nov 30, 2017
Active support ended: Jul 1, 2018
8 years ago
End of life: Jan 1, 2019
7 years ago
Latest version: 4.0.15
Dec 6, 2018

Upgrade path

The recommended upgrade is Symfony 8.1, currently at 8.1.8 and supported until Jan 31, 2027.

Quick answers

Is Symfony 4.0 still supported?: No. Symfony 4.0 reached end of life on Jan 1, 2019 (7 years ago). It no longer gets updates, including security fixes. Upgrade to Symfony 8.1 (latest 8.1.8), supported until Jan 31, 2027.
When is Symfony 4.0 end of life?: Symfony 4.0 reached end of life on Jan 1, 2019. It gets no more updates, including security fixes.
What is the latest version of Symfony 4.0?: The latest Symfony 4.0 release is 4.0.15, released on Dec 6, 2018.
When was Symfony 4.0 released?: Symfony 4.0 was released on Nov 30, 2017.
What should I upgrade Symfony 4.0 to?: The recommended upgrade is Symfony 8.1, currently at 8.1.8 and supported until Jan 31, 2027.
How do I check which Symfony version I have?: Run composer show | grep "symfony/", then paste the result into the “Am I up to date?” box on this page.