Input Output Global (IOG) published an update on Ouroboros Leios, presented as a major redesign of Cardano's consensus protocol aimed at significantly increasing transaction throughput and scalability. The post explains how Leios utilizes a novel concurrent structure with specialized block types (input, endorsement, ranking) to enable parallel processing while preserving the security and decentralization of Ouroboros Praos. Currently in the research and development phase, Leios is positioned as a transformative upgrade for Cardano's long-term capacity.

The April 11, 2025, blog post from IOG introduces Ouroboros Peras, an upgrade to the Ouroboros Praos protocol aimed at accelerating transaction settlement on Cardano. Peras reduces settlement times to around two minutes, increasing confidence in transaction finality. It introduces a voting-based chain selection process and certificate system to reach rapid consensus while maintaining security and decentralization. This advancement supports Cardano’s scalability and responsiveness to network demands.

The April 11, 2025, development report highlights Cardano’s steady growth with 1,990 projects, 1.33 million delegated wallets, and 10.75 million native tokens. Smart contracts reached 130,282 Plutus and 6,217 Aiken scripts, with 108.36 million total transactions. Governance participation expanded to 1,238 DReps. Highlights include Charles Hoskinson’s keynote at Paris Blockchain Week, a node diversity workshop, and Draper University selecting 20 builders for its residency. Zekret Protocol will build on Cardano, and Eternl wallet launched a new version with UI upgrades and multi-sig support.

The April 4, 2025, development report highlights Cardano’s continued growth, with 1,991 projects building on the network, 1.329 million delegated wallets, and 10.77 million native tokens issued. Smart contracts reached 130,036 Plutus scripts, and on-chain transactions totaled 108.10 million. Governance engagement expanded to 1,230 DReps, including 927 active. Notable updates include Input Output's participation in Paris Blockchain Week, Turn Protocol's public testnet launch for privacy DeFi, LCX's submission of the first MiCA-compliant white paper for Cardano, and the upcoming release of Cexplorer 2.0 with a new backend and refreshed design.

The March 28, 2025, development report highlights Cardano’s growth with 1.329 million delegated wallets, 10.73 million native tokens, and 131,200 Plutus scripts. On-chain transactions reached 108.35 million. Governance participation includes 1,220 DReps. Notable updates include Lace's release of version 1.21.0, Hydra's advancements in multi-party state channels, and Mithril's work on enhanced aggregator decentralization. The Cardano Foundation continues expanding its Venture Hub, onboarding projects like BlockSmith Labs and GreenChain.

The March 21, 2025, development report highlights Cardano’s growth with 1.328 million delegated wallets, 10.72 million native tokens, and 130,507 Plutus scripts. On-chain transactions reached 107.98 million. Governance participation expanded to 1,215 DReps. Notable updates include new Ouroboros Genesis simulations, Lace's integration with USDM for payments, and Mithril’s progress on aggregator resilience. The Hydra team released version 0.21.0, focusing on improved data handling. Cardano Foundation's Venture Hub welcomed new members, including Yolo Finance and Metaverse Labs.

The March 14, 2025, development report highlights 1.327 million delegated wallets, 10.71 million native tokens, and 129,108 Plutus scripts. On-chain transactions reached 107.52 million, with governance engagement growing to 1,205 DReps. The Hoskinson Family Office invested $1.5 million in W3i Software, Cardano won Blockchain Project of the Year at Crypto Expo EU, and Sebastien Guillemot introduced Starstream, a zkVM for UTXO smart contracts. Lace integrated with Wanchain Bridge, and Mithril advanced aggregator prototypes. The performance team enhanced benchmarking, while the ledger team focused on serialization improvements.

The March 7, 2025, development report highlights 1,988 projects on Cardano, 1.326 million delegated wallets, and 10.71 million native tokens. Smart contracts grew to 127,578 Plutus scripts, with 107.21 million on-chain transactions. Governance expanded to 1,185 DReps, including 905 active. Updates include Begin wallet’s DRep delegation, USDM’s beta launch, Emurgo’s DRep registration, Intersect’s roadmap proposal, the Cardano Foundation running nodes for Oraclecharli3 and Orcfax, and a five-week builder residency in Silicon Valley with Draper University.

The February 28, 2025, development report highlights Cardano’s growth, with 1,987 projects building on the network, 1.324 million delegated wallets, and 10.70 million native tokens issued. Smart contracts expanded to 127,114 Plutus scripts, and on-chain transactions grew to 108.80 million. Governance engagement remains strong with 1,147 DReps. Iagon and Andamio Platform joined the Cardano Foundation’s Venture Hub, Carlos Souza introduced ‘Xander,’ an Elixir library for node connections, and Butane Synthetics is launching Cardano’s first distributed, fault-resistant oracle.

The February 21, 2025, development report highlights Cardano's stable growth, with 1,985 projects building on the platform and over 106.5 million transactions processed. The consensus team benchmarked the in-memory backend for UTXO-HD, achieving a 9% reduction in CPU usage. The Lace team released version 1.20.0, introducing wallet renaming and a new 'Governance' tab. The Plutus team rebranded Plutus Tx to Plinth, enhancing the compiler for improved smart contract development. Additionally, the Hydra team launched the Hydra explorer for better network monitoring.