Does zustand Internally maintains mutable state?

[cobra0411]

On the docs, It mentioned that zustand states are immutable. Can anyone share docs of internal working of states how exactly state are updated?

[dai-shi]

state objects are immutable, but the state itself is mutable internally. You can only update it with setState.

zustand/src/vanilla.ts

Line 61 in 4ec7077

let state: TState