wp-includes/class-wp-meta-query.php:806Gets a flattened list of sanitized meta clauses.
array public function get_clauses() { return $this->clauses; }Introduced in 4.2.0. Unchanged from 6.7.7 through 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
src/wp-includes/class-wp-meta-query.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.