Just picked up a couple of each of the new Multi-purpose sensor and Leak Sensor (2018) models from local best buy. They didn't have them on the shelf and couldn't "find" them so I ordered online for in-store pickup (at the same location) and an hour later they were ready for pickup .
I was able to get both to pair as "devices" with no issue.
Water sensor seems to be working perfectly with generic zigbee water sensor driver and is reporting battery and temperature.
Multi-purpose sensor won't show open/close state with the Samsung Multi V4 driver, but shows open/close, temperature, and battery level with generic zigbee contact sensor. Seems like you may need one in-hand to be able to get the acceleration and orientation states working, but I'll experiment with the other Samsung drivers to see if I can get it going (I have doubts since it looks like a new oem). In case anyone is curious, the strength of the magnet is REALLY high compared to last generation and compared to both versions of the dome sensors i've used, It seems to detect from 1.5" or more away!
I have attached screenshots of both fingerprints so you can get them added to generic drivers to get folks started.