This is just a regulatory formality. Because the fund is being transferred from the Future Super Fund to the Smart Future Trust we need to send you an Exit Letter (or confirmation of account closure) for the Future Super Fund - and a Welcome Letter for the Smart Future Trust with information about your account.
No action is required from you for your balance to be moved across to the Smart Future Trust, but your Welcome Letter will contain instructions to update your employer to make sure you continue getting super contributions paid to the fund.