I just installed the new firmware.
No, it does not change your barometer calibration. What it does is change the way the sea level pressure is calculated. It now calculates the mean temperature differently, so that hourly pressure changes that were an artifact of the old way they did the calculation are now gone. But it takes a little while (under an hour) to accumulate enough data for the calculate to work properly. This only happens right after you upgrade the firmware.
So don't go calibrating your barometer immediately after upgrading. Give it an hour to settle in.
Interesting. When my console restarted, it was showing a barometric pressure of about 25.1 psi. That sure looked wrong to me.
My station altitude is 7320 ft. In the past, it has not been sufficient to just enter that station altitude.
Are you saying that I should go back into the barometric (Set Barometer) panel, and enter zero for the Sea-level barometer, in order to erase the previous calibration? Or what?
[In any case, it sure would have been appropriate for Davis to say something in the installation instructions about this. Seeing a reading of 25.1 sure led me to believe that I needed to do something.]