Assuming you are using the 65k method, which is what I do, no need show updated pass book. What is needed is the bank letter showing 12 monthly foreign deposits.
not the way it works while using the monthly income method. There is NO balance requirement. A special bank letter showing all 12 foreign transfers. Immigration, at least most of them, do not want statements but may ask for passbook copies.
It has to be foreign transfers and your second year. After that, you can spend it immediately. Best if you add a little padding like 66K just in case. 64,999 is not acceptable.