Yaci Store v2.0.1 Strengthens Cardano Governance Data Accuracy Ahead of Protocol Version 11

BloxBean has released Yaci Store v2.0.1, a new version of its modular Cardano blockchain indexer and datastore for developers building applications, explorers, wallet infrastructure, governance tools and analytics services. The update focuses on a critical part of the Cardano stack: the accuracy of indexed ledger and governance data used by applications that read the chain at scale.

Yaci Store gives developers access to structured Cardano data without requiring every team to build and maintain its own indexing layer. The tool processes blocks, transactions, UTxOs, staking data, governance activity, scripts, metadata and ledger state, then exposes that information for applications that need reliable on-chain data. The v2.0.1 release adds stronger governance accuracy, new staking and proposal APIs, multi-instance Docker deployment and readiness for the upcoming Protocol Version 11 hard fork.

Yaci Store v2.0.1 Improves Cardano Governance Accuracy

The main focus of Yaci Store v2.0.1 is accuracy across Cardano ledger and governance state values. According to the official release notes, ledger and governance state values, including AdaPot, proposal status, DRep distribution and DRep expiry, now match across public networks, with no known mismatches against DBSync at the time of the release. The release notes list verification across mainnet, preprod and preview environments.

For Cardano governance tools, this accuracy matters at the application layer. Proposal status, DRep distribution, voting thresholds, expiry logic and committee behavior shape what users, DReps, delegators and projects see when they track governance activity. Cleaner indexer calculations reduce inconsistencies between the chain state and the data presented by wallets, dashboards, explorers and analytics products.

The release also fixes several governance rule edge cases, including committee members without registered hot keys, SPO vote behavior when all stake abstains and threshold handling when participating DRep stake is zero. These are narrow technical corrections, but they affect how governance state is derived and displayed by downstream services that depend on Yaci Store for Cardano data.

Yaci Store v2.0.1 adds new API coverage for Cardano applications that need staking and governance data. The release includes support for withdrawable rewards, proposal queries by epoch, current proposal data and a governance statistics summary. It also improves the handling of newly submitted proposals, which are reflected as live in the indexed governance state.

For wallet and staking applications, the withdrawable rewards API gives developers a direct way to show which rewards can be withdrawn. For governance dashboards and explorers, the proposal and statistics endpoints make it easier to display active proposals, epoch-level governance data and broader participation metrics. For analytics services, this reduces the amount of custom logic needed to reconstruct the same data from lower-level chain information.

The update builds on Yaci Store 2.0.0, which introduced native ledger and governance state derivation, a modular plugin framework and production-focused improvements for Cardano data applications. The Cardano Foundation described that release as a step forward in how developers index, derive and consume Cardano blockchain data, with stronger support for governance actions and data-driven applications.

Protocol Version 11 Readiness and Production Deployment

Yaci Store v2.0.1 is marked as ready for Protocol Version 11, with BloxBean recommending the upgrade before the hard fork to avoid synchronization issues during the protocol transition. The release also makes Scalus the default transaction evaluator for Blockfrost-compatible script cost evaluation, aligning transaction evaluation with the updated runtime direction of the Cardano tooling stack.

The operational update includes multi-instance Docker deployment. A parameterized Docker Compose setup allows teams to run separate Yaci Store instances with their own configurations, ports and databases, such as dedicated deployments for mainnet, preprod and preview. Restart policies for Postgres and Yaci Store containers improve resilience for long-running services that rely on indexed Cardano state.

For production teams, the release creates a cleaner operating model for maintaining multiple Cardano environments while keeping indexed data aligned through protocol changes. Wallets, explorers, DeFi interfaces and governance dashboards all depend on backend infrastructure that can stay synchronized, calculate ledger state correctly and expose usable APIs to product layers.

Yaci Store v2.0.1 strengthens that data foundation. With cleaner governance calculations, expanded API coverage, multi-instance deployment support and Protocol Version 11 readiness, BloxBean has delivered an infrastructure update that makes Cardano application backends more accurate, easier to operate and better prepared for the next protocol transition.