I was playing with a couple of brand new H5074 devices and realized that the iOS app now includes two new charts, Dew Point, and VPD.
The new devices report as hardware version 2.00.01 firmware version 1.00.01. My older devices all report hardware version 1.00.01 and firmware version 1.01.00.
The pressure and dew point are available in both the new and old H5074 devices, but not with any of the other units I’ve got connected. (H5177 or H5075)
I’ve not been able to find details on the data. I don’t know if it’s packed into the BLE advertising data, or only available in the connected download data.
WimsWorld 
VPD is not nearly as interesting as I thought. Because it was displaying with units in kilopascal (kPa) I thought it was air pressure. What it’s actually displaying is Vapor Pressure Deficit, which is calculated from the temperature and relative humidity measurements. https://en.wikipedia.org/wiki/Vapour-pressure_deficit
According to https://www.govee.com/posts/70900 it was added in the last month.