wp-includes/deprecated.php:4072Filters out register_meta() args based on an allowed list.
$argsarray$default_argsarrayarrayfunction _wp_register_meta_args_whitelist( $args, $default_args ) { _deprecated_function( __FUNCTION__, '5.5.0', '_wp_register_meta_args_allowed_list()' ); return _wp_register_meta_args_allowed_list( $args, $default_args );}Introduced in 4.6.0. Unchanged from 6.7.7 through 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
src/wp-includes/deprecated.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.