Change the value of the register. You can provide your clock implementation instead of using timestamps based on DateTime.UtcNow.Ticks time. The timestamp can for example be an increasing version number from a database record that is used for optimistic concurrency control.

public LWWRegister<T> WithValue(
	UniqueAddress node,
	T value,
	Clock<T> clock = null
)

member WithValue : 
        node : UniqueAddress * 
        value : 'T * 
        ?clock : Clock<'T> 
(* Defaults:
        let _clock = defaultArg clock null
*)
-> LWWRegister<'T>