wp-includes/deprecated.php:4089Adds an array of options to the list of allowed options.
$new_optionsarray$optionsstring|arrayoptional''arrayfunction add_option_whitelist( $new_options, $options = '' ) { _deprecated_function( __FUNCTION__, '5.5.0', 'add_allowed_options()' ); return add_allowed_options( $new_options, $options );}Introduced in 2.7.0. 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.