wp-includes/class-wp-object-cache.php:585Sets the list of global cache groups.
$groupsstring|string[] public function add_global_groups( $groups ) { $groups = (array) $groups; $groups = array_fill_keys( $groups, true ); $this->global_groups = array_merge( $this->global_groups, $groups ); }Introduced in 3.0.0. Unchanged from 6.7.7 through 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
src/wp-includes/class-wp-object-cache.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.