The Cardano Foundation has officially released Cardano Rosetta Java v2.1.0, a significant upgrade that marks a crucial step in the blockchain's evolution. The update provides full support for Conway-era governance activities across both data and construction endpoints, enabling stake pool operators (SPOs) and developers to leverage advanced on-chain governance tools.
Key new features include support for SPO Voting and DRep (Delegated Representative) Vote Delegation, which are now accessible through the Rosetta interface. This allows wallets and services to create and read governance-related transactions seamlessly. The release also implements CIP-129, which offers automated DRep type inference from prefixed identifiers, streamlining delegation procedures and reducing the need for manual configuration.
While the upgrade is not mandatory, it delivers improved compatibility and functionality for teams integrating Conway and Voltaire-era governance workflows into their applications. For teams already on v2.0.0, the project documentation indicates compatibility without requiring a resync. However, teams upgrading from v1.x.x require a full genesis resync of the yaci-indexer.
The update includes several technical improvements: HTTP status codes have been realigned with error categorization, where non-retriable client errors now return a 400 Bad Request instead of a 500 Internal Server Error. This change requires builders to update their error-handling logic. Operational tooling has been enhanced with an experimental admin user interface for Yaci indexers, providing improved management capabilities and visibility.
Underlying environment updates include upgrading the Cardano Node to version 10.5.4 and updating Yaci components to ensure compatibility, which collectively enhance performance and stability. The Cardano Foundation highlighted that contributions from builders like @Sotatek-DucPhung underscore the growing collaboration within the ecosystem.
In related Cardano ecosystem news, the network's stablecoin supply has climbed to approximately $47.7 million, pushing the stablecoin-to-TVL (Total Value Locked) ratio to 33.87%. This growth is attributed to the recent rollout of USDCx on Cardano, which is backed 1:1 by USDC in Circle's xReserve smart contract.
