Energy figures: a power factor. Settings → Energy and cycles has a power factor, 1 by default. The estimate multiplies the inverter current by the voltage, which gives volt-amperes: at low compressor speed the real power is lower, and the estimate reads high. With a meter on the unit, set the value that matches it, 0.6 to 0.9 on most units. It applies to the inverter's part only, not to the pump and electronics nor to the backup heater, and the Today card says when it is set.
Two zones: the ECH2O's water after the tank is not a mixed zone. Since beta.19 the page took "[HPSU] Mixed leaving water temperature after the tank R7T" for the water of a mixed zone, so a single-zone ECH2O drew two zones as soon as that value was ticked (#629). Every ECH2O has that sensor: it is the supply to the house after the tank. Only the bizone kit's sensor makes two zones now, as in the firmware's own two-zone detection, and two-zone ECH2O units show the kit's mixed water again instead of the supply. Card 1.0.29 does the same in Home Assistant.
HT outdoor unit: names for the unnamed fields. "20-4", "20-8" and "20-18" become R6T (subcool hex gas), R3T (suction 1) and the heat exchanger liquid temperature, and three bits join: startup control, SV (hot gas) and SV (unload) (#624). If you had the old values ticked, Home Assistant creates new entities named after the labels: delete the old ones.
Web page. The drawing fetches the readings itself when the event stream has gone quiet, instead of staying on an old reading while the tiles kept refreshing. A gap above the Today card. During a hot water run, the floor heating return no longer animates.
Home Assistant doc. The COP template takes the leaving water after the backup heater (R2T), as the firmware does since beta.23, with how to compare R1T and R2T (pump running, heater off) and what a steady gap of a degree or more means.
Update: System → Firmware update → Check for an update, or the web installer. Card: 1.0.29 on HACS.