One of the standout changes in FSD V14.2.1 is the heightened sensitivity of the car’s in-cabin cameras that feed the driver-state and attention monitoring system. The adjustment is aimed at bolstering on-road safety and reducing the risk of incidents tied to driver inattention. In everyday use, more attentive monitoring often delivers a bigger safety dividend than flashier additions.

The new build arrived just a week after FSD V14.2, underlining a brisk development cadence and the manufacturer’s readiness to respond quickly to user requests. Many Tesla owners report that the entire FSD V14.x series has markedly improved the autopilot’s behavior, making driving more comfortable and safer.

Early impressions and detailed reviews are expected over the next few days as the update reaches a wider audience. It’s worth watching how the more sensitive attention checks play out in day-to-day traffic.