Skip to content

Weekly development report as of 2022-09-23

Weekly development report as of 2022-09-23


This week on September 22, IOG together with Cardano Foundation triggered the hard fork combinator event to deploy Vasil at the protocol level. Full Vasil functionality, which includes support for reference inputs, inline datums, reference scripts, collateral outputs, and a new Plutus cost model, will become available to developers on mainnet on September 27. 

Diffusion pipelining, also implemented as part of the Vasil release, will improve scalability by enabling further performance improvements. A ‘spike’ in activity is possible immediately following the upgrade – as the community ‘test drives’ the capabilities. Monitoring will continue for at least four epochs post-hard fork, at which point a decision will be made about further adjustments, based on 'regular' network bandwidth.

You can track the latest status of the ecosystem readiness and find out everything about Vasil in Tim Harrison’s post.

The ledger team also worked on era types in terms of organizational consistency, transaction output modules, and improved different parameters for more efficient script and transaction deployment.

The consensus team investigated ways for the UTXO HD mempool integration redesign and reviewed code on the alternative implementation of diff-sequences required by the UTXO HD feature. They also completed the Genesis implementation specification draft and started working on epoch boundaries and overhead benchmarking. For more details, see this update.


This week, the Daedalus team added voluntary-anonymous analytics tracking to the application. They also added and tested the LedgerJS library v.5.1.0.

Development work is ongoing on the Lace desktop features. The team deployed the first proof of concept to test embedded DApps in the desktop application, made improvements to the display of the local node sync process, and added support for preview and pre-production testing environments. 

The Adrestia team released a GraphQL update with some fixes and improvements for exchanges. They're also working to get cardano-js-sdk production-ready, and are continuing with the implementation of multisig (shared wallets) and ‘light’ mode features in cardano-wallet.


This week, the Plutus team continued improving documentation, made some Hackage and API improvements, and ran more testing. They progressed on the implementation of Babbage support for Plutus tools and continued setting up the Marconi testing infrastructure. 

The Marlowe team updated the validator to comply with constraint 4, replaced PK with Address in the specification and Isabelle proofs, implemented the constant validator, and added an end-to-end test case for publishing and using the constant validator. They also wrote tests for HistoryStore and reorganized semantic types to use literal programming. 

Finally, the team updated README instructions for NixOS in the marlowe-cardano repository. 


This week, the Hydra team connected two hydra-node instances using cloud services to run a more persistent example application. They also fixed layer 2 transaction resubmission using a TTL approach, and improved some flaky tests.

Development work is ongoing on the Mithril proof of concept: this week, the Mithril team worked on the migration of the internal stores of the signer and aggregator nodes, and also on the certification of the SPOs registering in the Mithril network. They also worked on the design of a new version of the release process. For more details, see the Mithril repository.


This week, Project Catalyst closed voting for Fund9. Community participation in this fund has surpassed expectations, with voting increasing by 53%. The voting power has also increased, which shows more ada being used across more proposals in Project Catalyst with 11% of all circulating ada being used in Fund9. This number continues to grow and demonstrates that the community is making its voice heard on what they want to see on Cardano.

Fund9 results will be shared early next week, and IOG wishes all proposals the best of luck. 

Some statistics:

  • The total number of registered wallets: 58,167

  • Total voting power in ada: 3,908,712,434

  • Total votes cast: 364,288

  • Ideascale users: 60,055




最新の状況はエコシステムの進捗情報ページを、また、Tim HarrisonによるVasilの解説ブログも合わせてご覧ください。


コンセンサスチームは、UTXO HDメモリープール統合の再設計方法を調査し、UTXO HD機能が必要とする代替diff-sequences実装に関するコードをレビューしました。Genesis実装仕様ドラフトを完成し、エポック境界とオーバーヘッドベンチマークの取り組みを始めました。詳細は、この更新情報をご覧ください(英語のみ)。









Basho( スケーリング)




Project CatalystはFund9の投票を締め切りました。今回のファンドへのコミュニティの参加者は予想を上回り、投票数は53%増加しました。投票力も増加しました。これは、Fund9でProject Catalystのより多くの提案に、全流通ADAの11%というより多くのADAが投入されたことを示しています。この数は増え続けており、コミュニティがCardanoに望むことについて、その声が聞き届けられることを示しています。



  • 登録されたウォレット総数:58167

  • 総投票力(ADA):3908712434

  • 総投票数:364288

  • Ideascaleユーザー数:60055