Hey @WeRo,
I’ve compiled a snapshot version from the current 4.2.x branch for myself - it’s working for 4.2.2 - you can find it here: org.openhab.binding.netatmo-4.2.3-SNAPSHOT.jar
Please remove the netatmo binding before putting the snapshot version into your addons folder (i.e. /usr/share/openhab/addons)
Nils