All Responder patch installers are cumulative and include all of the previous patches released for Responder at this release. Below are the most recent updates to the Responder 10.2.1c product.
RX-16810 - Viewing Calls Selected from ArcMap doesn't show the calls
RX-16811 - Prediction is Overpredicting With Certain Timing
- Any user on Responder 10.2.1c would benefit from this patch.