According to Osho, there are no kinds of nirvana; the release happens in a single, timeless drop, like a ripe fruit falling. What differs are the preparatory stages: an inner emptiness (Zhinmai), intermittent illuminations (satori), and the sunrise-like steadiness of samadhi. Samadhi is ripeness; nirvana is the falling—beyond gradations, beyond types.
No, nirvana isn’t in different versions; it’s one drop, but we ripen through stages—feeling inner emptiness, getting brief flashes, then steady dawn—until it happens.