The latest update can be identified by software version RPBS31.Q1-19-19-11-2-1-4. This is a minor security patch and hence does not bring any new features, improvements, or UI changes apart from improving the system security. If you’re a Verizon’s Motorola Edge+ user then you would have already received the update. If not, then manually check for the latest update by heading to Settings » About phone » System updates. Before updating the smartphone, make sure the battery is charged at least 50%. [source]