wp-includes/class-wp-styles.php:476Processes items and dependencies for the footer group.
string[] public function do_footer_items() { $this->do_items( false, 1 ); return $this->done; }Introduced in 3.3.0. Unchanged from 6.7.7 through 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
src/wp-includes/class-wp-styles.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.