Whitespace changes in navigation for 4.7

In [38523] the argument item_spacing was introduced for the functions wp_nav_menu(), wp_list_pages(), and wp_page_menu() to: ensure whitespace equivalent output when wp_nav_menu() falls back to wp_list_pages(), and, allow theme authors to control how whitespace is output. Backward compatibility changes. There is a backward compatibility breakage when wp_nav_menu() is empty and falls back to using wp_list_pages(). By … Continue reading Whitespace changes in navigation for 4.7