the DateFilter allows to use php strtotime values, in example today or +1 week.
the DateRangeFilter only allows a date which makes it very static.
If you want a filter which shows all tasks created within the last week, it is not possible at the moment.
I have to use createdRange:“01.08.2019…07.08.2019” insted of createdRange:“last week…today”
Maybe this could be enhanced?