var query = this.searchClient.Search();

            if (q.HasValue())
                query = query.For(q);

            if (currentPage.EventTypes.HasValue())
            {
                var eventTypeFilter = this.searchClient.BuildFilter();
                foreach (var eventType in currentPage.EventTypes.Select(x => x.ToReferenceWithoutVersion().ID))
                    eventTypeFilter = eventTypeFilter.Or(x => x.EventTypeIdList.Match(eventType));

                query = query.Filter(eventTypeFilter);
            }

            if (currentPage.ScopeOverride.HasValue())
                query = query.Filter(x => x.Ancestors().Match(currentPage.ScopeOverride.ToReferenceWithoutVersion().ID.ToString()));

            query = query
                .FilterForVisitor()
                .ExcludeDeleted()
                .Filter(x => x.EndDateTime.GreaterThan(DateTime.Now))
                .OrderBy(x => x.StartDateTime)
                .Skip(model.PageWeight * p)
                .Take(model.PageWeight);

            var results = query.GetContentResult();

We are using version 13.0.1.0