The author talks about a mechanism for replacing parts of a script (e.g. maintaining it in production in spite of the 'forever' longevity of a contract). The Tr

The author talks about a mechanism for replacing parts of a script (e.g. maintaining it in production in spite of the 'forever' longevity of a contract). The Truffle Ethereum development framework has such a proposal in the works -- a simple 'migration' mechanism that will allow in-place upgrades of running contracts: https://github.com/ConsenSys/truffle/issues/138 https://github.com/ConsenSys/truffle/issues/138