I belive that nothing will give us future Nothing OS for another 1 year called as security patch update. Because, major updates are when your Andorid version change, not the functions of sistem. So, it will stay on Android 15 but give (Nothing OS 3.1, 3.5 4.0…).
For example, this april security patch update, give more features for phone, so it doesn’t be just security patch.
This is just my opinion, but i believe it gonna be like that 😀.
