The development report highlights continued ecosystem growth, with 2,005 projects now building on Cardano. The consensus team introduced mempool optimizations and added node-to-node CDDL specifications. The Plutus Core team merged support for case analysis on booleans and integers, while the Plinth team introduced a new compiler optimization. Other notable updates include the Cardano Foundation launching Reeve, Intersect partnering with SundaeSwap, and Vespr Wallet open-sourcing its SDKs.

The Cardano Foundation launched Reeve, an enterprise reporting solution built on Cardano. It aims to boost financial transparency and corporate accountability by creating verifiable, tamper-resistant records. Reeve integrates with existing ERP systems to provide a secure and auditable ledger. The Foundation is now seeking partners to implement this solution and build a new layer of trust in financial operations.

The development report highlights continued ecosystem growth, with 2,005 active projects now building on Cardano. The ledger team defined PlutusV4 for the Dijkstra era, fixed a serialization bug, and implemented hard fork triggers. Scaling work saw the Mithril team complete the implementation of the publisher and consumer for the DMQ network, while the Hydra team worked on their 2025-2026 roadmap and Glacier-drop support. Ecosystem news includes MuesliSwap’s launch of MidStarterApp and Flow DeFi confirming USDA stablecoin support.

Project Acropolis is an initiative to make the network more developer-friendly. It aims to transform the Cardano node into a modular framework, allowing developers to build directly on the node using familiar tools. This approach seeks to lower the entry barrier, fostering innovation and ecosystem growth while preserving high-security standards.

Project Acropolis is an initiative to enhance developer accessibility. While the robust security of Cardano is acknowledged, the steep learning curve has hindered ecosystem growth. Acropolis aims to transition the Cardano node from a monolithic to a modular architecture, enabling developers to build applications using familiar tools directly within the node. This evolution is intended to lower entry barriers and foster innovation without compromising high-security standards.

The quarterly development report from the Cardano Foundation highlights significant progress across its tooling ecosystem. Key achievements include numerous improvements to the Cardano Rosetta Java implementation for enhanced performance and security. The report also details the release of Yaci Store v2.0.0, which introduces full ledger-state calculation independent of DB Sync, along with a powerful new plugin framework for greater extensibility.

The development report highlights continued ecosystem growth, with the number of projects building on Cardano reaching 2,004. The consensus team enhanced the Leios simulator and improved resource management in UTXO-HD. The Lace team released v.1.24 with multichain and user-centric upgrades. Mithril focused on the DMQ network, while Hydra released v.0.22.0. The community also voted in favor of the Intersect budget info action, paving the way for treasury withdrawals.

A June 23, 2025, blog post by Fergie Miller summarizes a Cardano R&D session on Layer-2 expansion beyond Hydra. The session featured presentations on Midgard (an optimistic rollup), a zk-rollup from zkFold SA, a ZK bridge from Eryx Cooperativa, and Gummiworm (a scalable rollup from Sundae Labs). Key discussion themes included interoperability, capital fragmentation, and the importance of security.

A June 23, 2025, IOHK blog post by a team of researchers explores the concept of slashing as a security mechanism in blockchains. It contrasts Ethereum's slashing-based model, where validators risk losing staked assets for misbehavior, with Cardano's non-slashing approach. The authors argue that slashing is ineffective against majority attacks and can deter participation, while Cardano’s method, relying on formal verification and stake-weighted incentives, provides robust security without these drawbacks.

Input Output Global (IOG) introduced the Cardano Blueprint, a comprehensive, open-source reference guide to the platform. This living document is designed to be a single source of truth, detailing Cardano's core components, architecture, protocols, and design principles. The Blueprint aims to enhance transparency and accessibility for developers, researchers, and the wider community. By providing a standardized technical reference, it seeks to improve the onboarding process and foster a deeper understanding of Cardano's intricacies.