End of PHP 7.3 / 7.4 / 8.0 support

To provide a more secure and stable system environment, Synology will end support for the following PHP versions in the next DSM release:

• PHP 7.3
• PHP 7.4
• PHP 8.0

These versions have been officially declared End-of-Life (EOL) by the PHP development team and no longer receive security updates. To reduce potential security risks, Synology will discontinue support for the above versions in upcoming DSM releases. We recommend migrating to currently supported versions to maintain system security and service stability.

Recommended PHP versions:

• PHP 8.1
• PHP 8.2

Affected Scope

Packages depending on End‑of‑Life PHP versions

• Synology will update all affected Synology packages in the next DSM release. Please be sure to upgrade every installed package to its latest version in order to remain compatible with the new PHP environment.
• If you are using third-party or manually installed applications, contact the respective developers to confirm compatibility with PHP 8.1 or 8.2, or wait for compatible updates to be released.

Web Station users

• If you are hosting websites via Web Station that currently use PHP 7.3, 7.4, or 8.0 as the execution environment, go to Web Station settings and switch the PHP Profile to PHP 8.1 or 8.2 to ensure your websites continue to function properly.

Custom-developed PHP applications

• If you have deployed custom PHP applications on your NAS, verify their compatibility with PHP 8.1 or 8.2 and perform any required updates or testing.