I have implemented improved token at: https://ethereum.org/token#full-coin-code
I use truffle to test and use migrations to deploy contract.
When I want to deploy a new version of
MyAdvancedToken, I don't want to lose the values of 'balanceOf' in the
But when i create a new contract like
MyAdvancesToken1 it compiles
token and deploy to new address. Is there anyway to deploy a new contract without losing balance database?