wp-includes/class-wp-post-type.php:1036Resets the cache for the default labels.
public static function reset_default_labels() { self::$default_labels = array(); }Introduced in 6.0.0. Unchanged from 6.7.7 through 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
src/wp-includes/class-wp-post-type.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.