in 4.4 wp version have problem, that

register_post_type('post', array(
    'hierarchical' => true,
    'public' => true
));

have duplicate post menu items in wp admin menu.. also adds wrong name.. it should be not Pages but Posts in older versions everything was alright.. any suggestions to do the same?

P.S. most important is to make my posts hierarchical no matters how to do it.. if know other solution, please share :)

I'm registering the following post type:

register_post_type( 'post', array(
    'hierarchical' => true,
    'public'       => true
) );

Now I have duplicate "Pages" menu items in WordPress Admin Menu. It should be not "Pages" but rather "Posts".

In older versions of WordPress ( < 4.4 ) everything was alright. Any suggestions to do the same? Most important is to make my posts hierarchical.