wp-includes/class-wp-query.php:567Reparses the query vars.
public function parse_query_vars() { $this->parse_query(); }Introduced in 1.5.0. Unchanged from 6.7.7 through 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
src/wp-includes/class-wp-query.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.