| ⇢ | A | Jetpack_Core_API_Widget_Endpoint added | |
| A | ↘ | C | Milestone_Widget got worse |
| ⇢ | D | Milestone_Widget::get_widget_data() added | |
| ⇢ | C | Milestone_Widget::get_unit() added | |
| ⇢ | B | Milestone_Widget::get_interval_in_units() added | |
| ⇢ | A | Jetpack_Core_API_Widget_Endpoint::process() added | |
| ⇢ | A | Jetpack_Core_API_Widget_Endpoint::can_request() added |