title: Updating a live smart contract
body: <p>If I have a smart contract that has the addresses of some other smart contracts hardcoded inside it. E.g. maybe my contract has the addresses of some external yield farming vaults that it periodically deposits some balances to.</p>
  <p>Now lets say that I want to update that list of addresses and remigrate it without upsetting the operation of the current contract.. what is the best way to do it ?</p>