Changes Added support for provisioning and managing public Ethereum nodes on main and test networks supporting secure access using Sigv4 and standard open-source Ethereum APIs.
Changes Introducing support for Hyperledger Fabric 1.4. When using framework version 1.4, the state database may optionally be specified when creating peer nodes (defaults to CouchDB).
Changes Amazon Managed Blockchain now has support to publish Hyperledger Fabric peer node, chaincode, and certificate authority (CA) logs to Amazon CloudWatch Logs.
Changes (New Service) Amazon Managed Blockchain is a fully managed service that makes it easy to create and manage scalable blockchain networks using popular open source frameworks.