This is the 3.x version of FullCalendar. 4.x has since been released. It removes jquery and moment as dependencies, revamps the API, and breaks FullCalendar's functionality into separate packages:

@fullcalendar/core
@fullcalendar/interaction
@fullcalendar/daygrid
@fullcalendar/timegrid
@fullcalendar/list
@fullcalendar/google-calendar
@fullcalendar/rrule
@fullcalendar/luxon
@fullcalendar/moment
@fullcalendar/moment-timezone
@fullcalendar/bootstrap

For more info, view the upgrade guide »