We have improved the way how variable values and device status values can be used in actions.
Up to now, you had to use the variable name and place it in double curly brackets. This was limiting the ability to have easy readable variable names and renaming variables could also be tricky.
By switching to a reference that is independent of the variable name, we make the naming more flexible (the change is not yet live) and the linking more robust.
You don’t need to update the current variable reference, as we keep the old linking method working. But you might want to migrate to profit from the more robust linking.
The article here describes the usage in detail: