Cardano 2.2.0 delivers the capability to transition to Shelley from Byron, including key Shelley features, a hard fork combinator, a new Stakepool Metadata Aggregation Server (Smash) component for managing stakepool metadata, and the Cardano Shelley component stack integrated with Cardano Node 1.18.0: Cardano DB Sync 3.1.0, Smash 0.1.0, Cardano REST 2.1.1, Cardano GraphQL 2.0.0, Cardano Explorer 1.0.1, Cardano Cardano Wallet 2020.7.28. The new Cardano documentation is now available for your reference.
Cardano Node 1.18.0
The Cardano node is the core of the Cardano blockchain.
The Cardano Node 1.18.0 update delivers a complete set of Shelley features together with the hard-fork combinator - a mechanism for transitioning from the federated Byron era to the decentralised Shelley era. It introduces a new configuration mode for the node called Cardano mode representing the sequential composition of the two eras (Byron;Shelley). The release also includes witnesses for spending from Byron addresses in Shelley era transactions, and numerous improvements and issue resolutions. Cardano node documentation is available on the Cardano documentation site.
The Cardano Node 1.18.0 was deployed to the testnet and mainnet on July 25, 2020.
Cardano DB Sync 3.0.0 and Cardano DB Sync 3.1.0
The Cardano DB Sync synchronizes blockchain data into a relational database.
Cardano DB Sync 3.0.0 provides support for the Shelley era, Cardano mode of Cardano node, and the ability to transition from the Byron era to the Shelley era. It was released on July 25, 2020.
The Cardano DB Sync 3.1.0 release adds functionality to support the Cardano GraphQL component Shelley release, wallet backend implementation based on DB Sync, and some internal improvements. It was deployed on the mainnet and released 28 July 2020.
Both releases require the database tables to be “dropped” and the database recreated from scratch. Compatible with Cardano Node 1.18.0.
Stakepool Metadata Aggregation Server (Smash) is a new component that collects, stores and provides Cardano blockchain stake pool information (metadata) off-chain on a server.
Cardano ReST 2.1.0 and Cardano ReST 2.1.1
The Cardano ReST API allows information about the chain that has been stored in the PostGreSQL database to be obtained via a ReST interface.It includes two APIs: Cardano Explorer API and Cardano transaction submission API.
Cardano ReST 2.1.0 provides support for multiple protocol modes including Shelley. It also delivers new command-line interfaces `cardano-explorer-api` and `cardano-submit-api` with various options to configure the web-servers, some improvements and resolved issues. It is compatible with Cardano Node 1.18.0 and Cardano DB Sync 3.0.0. Released 25 July 2020.
Cardano GraphQL 2.0.0
Cardano GraphQL provides an API and packages for building services to query the Cardano blockchain database over a GraphQL interface.
Cardano GraphQL 2.0.0 brings the first round of Shelley era features to the API, introduces a new genesis file API package, and hardens the migrations and metadata handling. Compatible with Cardano Node 1.18.0 and Cardano DB Sync 3.1.0. Released 29 July 2020.
Cardano Explorer 1.0.1
The Cardano Explorer is a web application that allows data to be queried and viewed on the Cardano blockchain. It provides details of epochs, blocks, transactions, and addresses of the Cardano blockchain.
Cardano Wallet 2020.7.28
The Cardano wallet backend provides an HTTP API and a command-line interface for sending and receiving payments on the Cardano blockchain.
The Cardano Wallet 2020.7.28 update, integrated with Cardano Node 1.18.0, provides support for the Shelley hard fork and Shelley transactions on Windows, MacOS, and Linux. It also includes some improvements and issue resolutions. Released on July 28, 2020.