Kiwi News Version 0.2.0 released - contains fixes that harden the protocol

Kiwi Stand Version 0.2.0 A few days ago, @freeatnet.eth found a critical bug in the hashing mechanism of the messages which we fixed by applying a migration and coordinating an upgrade of the network. Been working day & night on this one 😵 https://github.com/attestate/kiwistand/blob/main/changelog.md#020