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WP EngineDocumentation

WordPress Core Version

WP Engine manages WordPress core on Autoscale and chooses the version by default. To hold an environment on a particular major version, pin it from your repository.

Pinning a version

Section titled “Pinning a version”

Add extra.wpengine.wordpress_core_version to the composer.json at the root of your repository:

composer.json
{
  "extra": {
    "wpengine": {
      "wordpress_core_version": "6.9"
    }
  }
}

The value is read at build time, so a change takes effect on your next deployment.

Rules

Section titled “Rules”
Rule Detail
Major versions only Use "6.9" or "7.0". A patch-level value such as "6.9.4" is not valid.
Patch updates still apply WP Engine applies security and patch releases within the major version you pin.
Omitting the field opts out An absent or empty value means the platform default.
Three majors are supported Generally the last three major versions. Contact WP Engine Support if you need something outside that window.

Core files

Section titled “Core files”
  • Core is mounted by the platform. wp-admin/, wp-includes/, and wp-config.php in your repository are ignored.
  • Core updates from WP Admin are disabled. See WordPress Constants for the constants that enforce this.

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