Level
1st
Casting Time
1 Reaction *
Range/Area
60 ft
Components
V, M **
Duration
1 Minute
School
Transmutation
Attack/Save
None
Damage/Effect
Exploration (...)
Choose up to five falling creatures within range. A falling creature’s rate of descent slows to 60 feet per round until the spell ends. If a creature lands before the spell ends, the creature takes no damage from the fall, and the spell ends for that creature.
* - which you take when you or a creature you can see within 60 feet of you falls ** - (a small feather or piece of down)
Legacy text: 1 Reaction "which you take when you or a creature within 60 feet of you falls"
2024 text: 1 Reaction "which you take when you or a creature you can see within 60 feet of you falls"
You now have to be able to see a creature falling in order to trigger the reaction to cast this spell. Technically you can still target falling creatures you can't see but you don't get the reaction unless you see a creature fall or are falling yourself.
So in the specific situation where you hear a creature fall within 60 feet but do not see them fall, even if they tell you "Help! I'm falling!" you cannot cast the spell. Weird situational wrinkle.