How to add max date from a date column in new custom column in Power Query in each cell

[Ramendra]

How to add max date from a date column in new custom column in Power Query in each cell

Can someone please help with the expression for this.

[amitchandak]

@Ramendra , I think List.Max should do

New custom column

List.Max([Date])

[Ramendra]

@amitchandak 
Sorry but List.Max function do not work for date columns. It gives error in result column.

[Ramendra · Accepted solution]

@amitchandak 
I found that If we add the previous step reference in List.Max function then it works.
For example :- List.Max(#"Changed Type4"[Date column])