New features covered in this book

The first edition of this book was published along with Fabric version 1.1. The following is an overview of the new features introduced between version 1.1 and the current version, 2.0:

• Private data: Private data allows a subset of organizations participating in one ledger to keep some data private between themselves.
• Service discovery: This helps client applications to dynamically discover configuration information about the network peers, cryptographic materials, endorsement policy, and other information needed to submit transactions to the network.
• State-based endorsement: This allows the contract-level endorsement policy to be overridden by a policy for a specific key(s).
• Pluggable system contracts: Developers can now develop own consensus models by implementing and deploying own system endorsement (ESCC) and validation (VSCC) contracts.
• Identity Mixer: This is a new type of membership provider that provides...