Hyperledger Fabric v2.0 is a major release that introduces a number of new features and improvements. These changes are designed to make Fabric more scalable, secure, and easy to use.
One of the most significant changes in Fabric v2.0 is the introduction of a new consensus algorithm called Raft. Raft is a more scalable and efficient consensus algorithm than the previous algorithm, PBFT. This change will allow Fabric to support more nodes and transactions per second.
Another major change in Fabric v2.0 is the introduction of a new privacy model. The new privacy model allows organizations to control how their data is shared on the blockchain. This change will make Fabric more attractive to organizations that are concerned about data privacy.
In addition to the new consensus algorithm and privacy model, Fabric v2.0 also includes a number of other improvements. These improvements include:
- A new chaincode lifecycle management process that makes it easier to deploy and manage smart contracts.
- A new set of chaincode application patterns that make it easier to build applications on Fabric.
- A new external chaincode launcher that makes it easier to deploy smart contracts from outside of Fabric.
- A number of performance improvements that make Fabric faster and more efficient.
Overall, Hyperledger Fabric v2.0 is a major release that introduces a number of significant changes. These changes are designed to make Fabric more scalable, secure, and easy to use. As a result, Fabric is now a more attractive platform for a wider range of use cases.
Here is a more detailed look at some of the new features of Hyperledger Fabric v2.0:
New Consensus Algorithm: Raft
Raft is a more scalable and efficient consensus algorithm than the previous algorithm, PBFT. Raft is a leader-based algorithm, which means that there is a single leader node that is responsible for coordinating consensus. This makes Raft more efficient than PBFT, which is a more complex algorithm that requires all nodes to participate in the consensus process.
Raft is also more scalable than PBFT. Raft can support more nodes in a network than PBFT. This is because Raft does not require all nodes to participate in the consensus process. Only the leader node and a small number of follower nodes need to be involved in the consensus process.
The introduction of Raft in Fabric v2.0 will allow Fabric to support more nodes and transactions per second. This will make Fabric a more attractive platform for applications that require high throughput and scalability.
New Privacy Model
Fabric v2.0 introduces a new privacy model that allows organizations to control how their data is shared on the blockchain. The new privacy model is based on the concept of channels. Channels are private networks that are created by a group of organizations. Only organizations that are members of a channel can access data that is stored on the channel.
The new privacy model makes Fabric more attractive to organizations that are concerned about data privacy. Organizations can use channels to create private networks where they can share data with other organizations without worrying about their data being exposed to unauthorized parties.
New Chaincode Lifecycle Management Process
Fabric v2.0 introduces a new chaincode lifecycle management process that makes it easier to deploy and manage smart contracts. The new process includes a number of new features, such as:
- A new chaincode endorsement policy that allows organizations to control who can endorse chaincode transactions.
- A new chaincode upgrade process that makes it easier to upgrade smart contracts.
- A new chaincode governance process that allows organizations to manage smart contracts.
- The new chaincode lifecycle management process makes it easier for organizations to deploy and manage smart contracts on Fabric. This will make Fabric a more attractive platform for organizations that are developing blockchain applications.
New Chaincode Application Patterns
Fabric v2.0 introduces a new set of chaincode application patterns that make it easier to build applications on Fabric. The new patterns include:
- A new pattern for building supply chain applications.
- A new pattern for building financial applications.
- A new pattern for building healthcare applications.
The new chaincode application patterns make it easier for organizations to build blockchain applications on Fabric. This will make Fabric a more attractive platform for a wider range of use cases.
New External Chaincode Launcher
Fabric v2.0 introduces a new external chaincode launcher that makes it easier to deploy smart contracts from outside of Fabric. The new launcher allows organizations to deploy smart contracts from their own development environments. This makes it easier for organizations to develop and test smart contracts before deploying them on Fabric.
Read Also: What are Blockchain Dapps?
Performance Improvements
Fabric v2.0 includes a number of performance improvements that make Fabric faster and more efficient. These improvements include:
- A new caching mechanism that improves the performance of queries.
- A new transaction batching mechanism that improves the performance of transactions.
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