| ⇢ | A | Oembed_Field added | |
| A | ↛ | OEmbed_Field removed |
| ⇢ | A | Widget::register_container() added | |
| ⇢ | A | Loader::initialize_widgets() added | |
| ⇢ | A | Router::get_association_options() added | |
| ⇢ | A | Oembed_Field::to_json() added | |
| ⇢ | A | Oembed_Field::admin_enqueue_scripts() added | |
| A | ↘ | B | Widget_Container::is_valid_attach_for_request() got worse |
| A | ↛ | OEmbed_Field::to_json() removed | |
| A | ↛ | OEmbed_Field::admin_enqueue_scripts() removed |