Add a new expression "in" so a $filter can have a condition such as
(Status in 'new, queued, processing') rather than an "eq" statement for each value
For us this feature would be very important as well to query for a dynamic list of values such as IDs.
This expression would perfectly map to the existing _In expression in Aurelius Criteria.
Syntax should be as in OData:
Status in ('new', 'queued', 'processing')