WordPress WooCommerce: Add Revisions For Products

functions.php

<?php

add_filter( 'woocommerce_register_post_type_product', 'wc_add_revision_support' );

function wc_add_revision_support( $args ) {
     $args['supports'][] = 'revisions';

     return $args;
}

function wpcodex_add_excerpt_support_for_pages() {
    add_post_type_support( 'product', 'revisions' );
}
add_action( 'init', 'wpcodex_add_excerpt_support_for_pages' );