The ledger team enhanced the CDDL specification and improved safety by restricting certain protocol parameter types, introduced tools for controlling test case distribution, worked on UTXO predicate failure tests, enabled retrying of flaky tests in nightly CI, and made further improvements. The Lace team released v1.12, adding a fiat on-ramp with Banxa and enabling multi-delegation for supported hardware wallets. The Plutus team released version 1.29.0.0 of the Plutus libraries, which includes CIP-69 and CIP-117 implementations. The Mithril team improved the throughput of the prover route, transitioned to a chain point-based beacon for faster transaction signing, and prepared a threat modeling explainer for the documentation website. The ledger team continued testing the Conway era and fixed several bugs related to DRep expiry and committee voting thresholds. Intersect updates included interim constitutional committee elections and joining Hyperledger and the Linux Foundation. In Catalyst, town hall 165 shared updates, including the end of the community review period for LV0s and LV1s, and the start of LV2 moderation on June 13. The alternative voting mechanism achieved milestone 1 and was presented during town hall 165. The education team continued working on Mastering Cardano, supporting the DRep Pioneer Program, and preparing for the next Cardano Developer course.

The consensus team advanced the UTXO-HD project using simple diffs, improving mempool benchmarks. They released quickcheck-state-machine library v0.10.0 and rebased UTXO-HD on node v8.11. Technical working groups under Intersect were established, with Plutus and consensus meetings set for early June. Updates on UTXO-HD and Ouroboros Peras were provided. The Hydra team released node v0.17.0, featuring new commit transaction mechanisms and networking upgrades. The Mithril team released a protocol insights dashboard, updated the explorer page, and improved transaction certification. SanchoNet invites community testing for on-chain governance as per CIP-1694, with updated documentation. Project Catalyst hosted town hall 164, with the community review stage ongoing and Fund12 voting registration open. The education team is preparing lectures for the Cardano Developer Course, supporting the DRep Pioneer program, and writing content for Mastering Cardano.

This week, the ledger team focused on conformance testing, completing tests for CERT and RATIFY rules and improving the constraint-generators framework. They also fixed the stake pool operator stake distribution calculation for voting. The Plutus team developed guardrail scripts for Conway governance actions, fine-tuned the PlutusV3 cost model, and collaborated with MLabs on new bitwise primitives. The Mithril team worked on Cardano transaction certification, scaling proof generation, low-latency certification, and a new explorer page for SPOs. They upgraded the testing network and removed deprecated commands. Work continued on SanchoNet documentation and the DRep Pioneer program with Intersect. Fund12 reached the proposal finalization stage, and development on Hermes and Catalyst voices progressed well. The education team is planning the next Cardano Developer course, advancing the Mastering Cardano series, and preparing an educational video about the constitutional committee.

This week, the consensus team released node v.8.11, improving Praos chain order, leader schedule statistics, and node robustness. They also updated on Ouroboros Genesis design and setup a consensus technical working group. The performance team completed UTXO-HD benchmarks, and the Lace team launched Lace v.1.11 with enhanced NFT functionality and Trezor T integration. The Hydra team upgraded node networking, fixed transaction parsing, and experimented with reliability layer changes. The Mithril team released distribution 2418.1, supported broader CPU use, improved memory allocation, and optimized signature generation. Voltaire & SanchoNet added CLI commands for hard forks, adjusted protocol versions, and tested CIP-1694. Catalyst Fund12 received 1,283 proposals, with community review starting May 23. The education team worked on Voltaire explainers and Mastering Cardano content.

This week, the performance team analyzed Conway era benchmarks with DReps, improved error reporting, and supported the new CLI command for testnet data. Node metrics were expanded, and UTXO scaling benchmarks were completed. The networking team enhanced peer-sharing, worked on Genesis APIs, resolved bootstrap peer issues, and synchronized churn with outbound governor. The Plutus team improved fixed point operators for efficiency. The Hydra team refactored network protocols and made workflow fixes. Voltaire & SanchoNet finalized Conway era features, updated Plutus CostModels, and improved CI setups. Fund12 in Catalyst is ongoing with approaching deadlines. The education team launched the DRep Pioneer Program, published Haskell Bootcamp lesson 19, and continued work on Mastering Cardano.

Ouroboros Genesis, the latest enhancement to Cardano’s consensus protocol, addresses the vulnerabilities of nodes joining or rejoining the network. It introduces concepts like ledger peers, lightweight checkpointing, limits on eagerness (LoE) and patience (LoP), and Genesis density disconnections (GDD). These measures prevent long-range and eclipse attacks, ensuring nodes can securely sync with the blockchain. The first Genesis-capable implementation is expected by Q3 2024, with ongoing optimizations to handle increased peer counts.

Over the past few weeks, the SRE team deployed Cardano node v.8.9.2 to various environments and v.8.10.1-pre to SanchoNet, rewriting the ouroboros-network-ops cluster. The consensus team reworked database arguments for UTXO-HD, reviewed the Peras innovation report, and supported networking work on big ledger peers. The Mithril team prepared distribution 2418.1-pre with broader CPU support, implemented transaction certification, and worked on signature and proof generation. They also started a global configuration file and investigated error logs. The node and CLI team released v.8.10.1-pre to SanchoNet, improved CI pipelines, and implemented build-estimate for transaction balancing. Fund12 entered the submissions phase with a deadline of May 13. The education team developed the DRep Pioneer program curriculum and attended the Cardano Buidler fest and Catalyst Fund12 launch.

This week, the performance and tracing team concluded benchmarking nodes v.8.9.2 and v.8.10.0, designed quick queries for the analysis pipeline, and enhanced Prometheus output for better accessibility. The Plutus team unified command line tools into a single executable and added features. The Mithril team focused on transaction certification, memory issue fixes, and signer registration decentralization, while the Hydra team prepared for versioned network protocols and added property tests. The ledger team updated PlutusV3 in the genesis file, fixed bugs, and improved data generation for the Conway era. The Catalyst team launched Fund12 in Barcelona and began proposal submissions. The education team reviewed capstone projects and planned DRep training with the Voltaire tribe and Intersect team.

The Cardano Foundation, along with Blink Labs, dcSpark, Sundae Labs, and TxPipe, announced the launch of PRAGMA, a not-for-profit open-source association for blockchain software projects. PRAGMA aims to foster an open-source ecosystem for Cardano and other blockchains, focusing on projects like Amaru and Aiken. Membership will open to broader developers in 2025, supporting the creation of innovative, enterprise-focused technologies.

This week, the core technology teams released node v.8.9.2, resolving a peer-sharing issue. The SRE team made various environment improvements, including re-spinning the Voltaire private chain and updating SanchoNet. The networking team advanced Genesis support, and the consensus team implemented a new diffusion pipelining criterion. The Hydra team fixed a bug, refactored network functions, and prepared a cardano-api branch. The Mithril team worked on transaction certification, memory leak investigation, and signer registration decentralization. Voltaire & SanchoNet updated documentation and tutorials. Fund12 launched in Barcelona on April 26, with proposal submissions starting April 30. The education team wrapped up the ABC Cardano Developer course and developed new Aiken content.