Only small, additive features are listed here. Refactors and package-wide redesigns are intentionally excluded.
Offer optional manual from and to inputs for RangeFilter, allowing either boundary to remain empty when a slider is unsuitable for a wide or unbounded range.
Allow entries in CombinedFilter to select multiple values and choose whether the resulting relationship constraints use all-value or any-value semantics.
Extend HasFilter with minimum and maximum related-record counts in addition to the current has-or-does-not-have choice.