wp-includes/sitemaps/class-wp-sitemaps.php:112Registers and sets up the functionality for all supported sitemaps.
public function register_sitemaps() { $providers = array( 'posts' => new WP_Sitemaps_Posts(), 'taxonomies' => new WP_Sitemaps_Taxonomies(), 'users' => new WP_Sitemaps_Users(), ); /* @var WP_Sitemaps_Provider $provider */ foreach ( $providers as $name => $provider ) { $this->registry->add_provider( $name, $provider ); } }Introduced in 5.5.0. Unchanged from 6.7.7 through 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
src/wp-includes/sitemaps/class-wp-sitemaps.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.