wp-includes/functions.php:4699Retrieves the WordPress home page URL.
$urlstringoptional''stringfunction _config_wp_home( $url = '' ) { if ( defined( 'WP_HOME' ) ) { return untrailingslashit( WP_HOME ); } return $url;}Introduced in 2.2.0. Unchanged from 6.7.7 through 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
src/wp-includes/functions.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.