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· 2 min read
Jean-Philippe Raynaud

High level overview​

This week the Mithril team announced the release of a new Mithril distribution 2408.0. This release includes several critical updates and enhancements, such as improved support for stake distribution, Mithril era markers retrieval in the Pallas chain observer, enhanced support for the Conway era and Sanchonet network, as well as various bug fixes and performance improvements. In addition, the team has made changes to the Mithril client CLI, changing the log output from stdout to stderr from v0.7.0. This announcement was made in the developer blog post.

The team kept implementing the data type for certifying Cardano transactions within Mithril networks: they completed the support for the verification in the browser with the WASM client, they worked on enhancing the associated client CLI API, and implemented smoke tests. Additionally, the team has activated the signature of Cardano transactions on the testing-sanchonet network, and they have investigated a bug that prevents the signature of some transactions on this network.

Finally, the team worked on reorganizing the repository structure, fixed an issue with test folder generation on MacOS, and worked on some documentation improvements.

Low level overview​

  • Released the new distribution 2408.0
  • Publication of a dev blog post about the Mithril SanchoNet network release.
  • Publication of a dev blog post about a breaking change in the Mithril client CLI.
  • Completed the issue Implement Cardano Transactions commands in the client binary #1469
  • Completed the issue Implement Cardano Transactions verification in the WASM client #1470
  • Completed the issue Some end to end tests are flaky in the CI #1147
  • Completed the issue Release 2408 distribution #1500
  • Completed the issue Unify test folder generation #1508
  • Completed the issue Adapt Mithril Client multi-platform test for Cardano Transactions #1510
  • Completed the issue Document Mithril signer footprint #1519
  • Completed the issue Add a runbook for running Client multi-platform tests #1530
  • Completed the issue Update workflow github actions to node-20 #1520
  • Worked on the issue Cardano transactions are not all signed in testing-sanchonet #1537
  • Worked on the issue Make HTTP server tests more robust #1524
  • Worked on the issue Stabilize namings in Cardano Transactions API #1535
  • Worked on the issue Reorganize crates in the repository #1528
  • Worked on the issue Enhance Mithril/Cardano node communication #1315
  • Worked on the issue P2P threat modeling and risk analysis #1350

· One min read
Sebastian Nagel

High-level Summary​

This week, the Hydra team successfully fixed the fanout after contest bug using their significantly improved model-based test suite. Additionally, they transitioned to cardano-api version 8.38 and started testing against cardano-node version 8.8. Furthermore, they enhanced fee estimation within the hydra-node internal wallet resulting in cheaper head opening / closing transactions and added transaction metadata to help identifying Hydra protocol transactions.

What did the team achieve this week

  • Fixed the fanout after contest bug using our signifcantly improved model-based test suite #1260
  • Switched to cardano-api 8.38 and run tests against cardano-node 8.8 #1297
  • Improved fee estimation in hydra-node internal wallet #1315
  • Added transaction metadata to identify Hydra protocol transactions (on L1) #1311

What are the goals of next week

  • Have the monthly review meeting + write a report
  • Explorer targeting and showing data of the latest released hydra version
  • Implement off-chain incremental commit protocol changes
  • Review EventSource and EventSink refactor done by SundaeLabs
  • See smoke tests passing consistently on Sanchonet

· 2 min read
Jean-Philippe Raynaud

High level overview​

This week, the Mithril team kept implementing a new data type for certifying Cardano transactions within Mithril networks. They worked on enhancing the client CLI output and almost completed the support for the verification of Cardano transactions in the browser with the WASM client. The team also worked on a new feature of the Pallas chain observer to support stake distribution retrieval, and fixed the majority of the flakiness occurring in the CI end-to-end tests. Additionally, they have deployed the new Mithril network running on SanchoNet.

Finally, the team created a new example crate for using the client library to verify Cardano transactions, kept working on the threat modeling and risk analysis for the Mithril network, and completed their new tool for automatic documentation generation for the CLIs.

Low level overview​

  • Worked on the issue Implement Cardano Transactions commands in the client binary #1469
  • Worked on the issue Implement Cardano Transactions verification in the WASM client #1470
  • Worked on the issue Some end to end tests are flaky in the CI #1147
  • Completed the issue Re-spin Sanchonet network #1503
  • Worked on the issue Enhance Mithril/Cardano node communication #1315
  • Completed the issue Add signing capabilities to the root route of the aggregator #1496
  • Worked on the issue P2P threat modeling and risk analysis #1350
  • Completed the issue Add an example crate for the CardanoTransactions type #1495
  • Worked on the issue Unify test folder generation #1508
  • Completed the issue Generate automatic documentation for CLIs #1471

· 2 min read
Marcin Szamotulski

High-level overview of sprint 55​

This sprint the networking was nominated for the Cardano Release Engineer role and we've been working on the integration of bootstrap peers with cardano-node. This is a work in progress: cardano-node-5485. cardano-node-8.9 will be the first node which supports the bootstrap peers feature, but we anticipate additional improvements needed before this is used at scale.

We disabled mean reward for new peers in the churn mechanism which was hurting connection in remote destinations. Thanks to Karl Knutsson (CF) for providing evidence and a patch. In future, this mechanism will be further changed, but this requires more analysis. ouroboros-network#4800

We continued working on tx-submission, ouroboros-network#3311

We welcome Marcin Wójtowicz as part of the Networking Team of Cardano Core Tech. He reviewed our documentation as part of his onboarding process: ouroboros-network#4802.

Andrew Westberg (DripDropz) corrected documentation regarding which node-to-node protocol version introduced P2P.

Low-level summary​

Open Source Contributions​

IOSim​

We released io-sim-1.4.1.0 with some new features & improvements: