The ledger team focused on Conway features and fixed a bug affecting functionality post-bootstrap. Hydra worked on network reliability, upgraded the Hydra head for node compatibility, and introduced a technical writing guide. Mithril released distribution 2430.0, supporting Cardano node 9.1.0, activated transaction certification in test networks, and continued CIP drafting. Catalyst's onboarding is progressing, with Town Hall 173 marking Fund12's end. The education team completed a Cardano Developer course in Buenos Aires and organized a graduation event for smart contract developers.

Cardano node v.9.1.0 has been released, featuring critical updates for the upcoming Chang upgrade, including a Conway genesis file, CLI enhancements, and CIP compatibility. Performance benchmarks for node v.9.0.0 showed significant improvements. The networking team advanced tx-submission design and reviewed Genesis pull requests. The Lace team is preparing for version 1.14, and Plutus TX has been rebranded as Plinth. The Hydra and Mithril teams made progress on network reliability and transaction certification. The education team is in Argentina teaching a Cardano Developer course.

The ledger team focuses on testing for the Chang upgrade. Lace v.1.14 is upcoming. Hydra updated for node v.9.0.0 and simplified the demo setup. Mithril released distribution 2428.0, supported node v.9.0.0, fixed bugs, and optimized certification. Node users should upgrade to v.9.0.0. Fund12 results announced 258 new projects, with Town Hall 171 celebrating winners. Catalyst completed 900+ projects and allocated over 100M ADA. The education team is in Buenos Aires for the Cardano Developer course.

This week, the teams released node version 9.0.0, enabling the Conway ledger era with CIP-1694, Plutus V1 reference scripts, and CIP-69 support. The performance team released benchmarks for node v.8.12.0 and conducted DRep benchmarks. The consensus team supported the 9.0 release with security audits and NoThunks tests. The Plutus team improved contract blueprints and documentation. The Lace team focused on bug fixes. Mithril supported node v.9.0.0, worked on a new distribution, and fixed REST API bugs. Town Hall 170 and Fund12 voting concluded with 1.5bn ada used. The education team prepared for the Cardano Developer course and Voltaire training.

Last week, core technology teams released Cardano node v.8.12.2, enhancing bootstrap peer networking. The ledger team worked on testing and updates, while Lace v.1.13 improved Trezor Safe 3 compatibility. Mithril advanced transaction certification, fixed bugs, and supported node v.8.12. Conway ledger improvements included credential restrictions and a new pricing model. Town hall 169 reported over 1bn ada in voting power. The education team prepared for the Cardano Developer course in Buenos Aires and updated content for Voltaire and Mastering Cardano.

The consensus team optimized db-truncater for speed, supported debugging for bootstrap nodes, and released benchmarks for node v.8.12.0. They also merged a performance fix for node v.8.11, worked on governance action workload, and updated automations for Conway features and the Plutus cost model. The Plutus team overviewed the cost model, designed faster pattern matching, and improved documentation. The Mithril team released a threat modeling explainer, worked on Cardano transaction certification, and improved WASM client documentation. Catalyst released a shortlist of tier-one companies for voting, and the education team updated the Mastering Cardano series and prepared for next month’s developer course.

This week, the ledger team implemented CIP-0069, enhancing PlutusV3 functionality by making spending datums optional and enforcing single arguments for scripts. They also fixed script execution and delegation bugs. The Lace team prepares for v.1.13 release. The Plutus team released version 1.30.0.0, featuring CIP-0122 and ledger API refactoring. The Mithril team improved transaction certification and throughput. Voltaire & SanchoNet updates include member-experience improvements and upcoming votes. Catalyst town hall 167 marked the end of community moderation for Fund12, with voting starting June 27. The education team prepares for next month’s Cardano Developer course.

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 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.