
    Write a function that updates a user's event preference history by replacing their most recent interest category with a new set of recommended event categories derived from their social connections. The function should take the user's current event history list and a list of new recommended event categories as input, modifying the original history by substituting its last entry with all elements from the recommendations list.
    

    
def replace_list(list1, list2):
    """
    Write a function that updates a user's event preference history by replacing their most recent interest category with a new set of recommended event categories derived from their social connections. The function should take the user's current event history list and a list of new recommended event categories as input, modifying the original history by substituting its last entry with all elements from the recommendations list.
    

    """
def replace_list(list1, list2):
    """
    Write a function that updates a user's event preference history by replacing their most recent interest category with a new set of recommended event categories derived from their social connections. The function should take the user's current event history list and a list of new recommended event categories as input, modifying the original history by substituting its last entry with all elements from the recommendations list.
    

    """
    list1[-1:] = list2
    replace_list = list1
    return replace_list