Skip to main content

· One min read
Noon van der Silk

High-level summary​

The team are very excited to have merged the etcd-based networking stack into master (not yet released). We would appreciate people testing this and reporting any issues! We continue to work on memory usage and potential stuck-head resolutions.

What did the team achieve?​

  • Merged the etcd-based network stack #1720
  • Progress on reduced memory footprint for running a Hydra Node #1618
  • Progress on "side-load" of a snapshot #1858

What's next?​

  • Continue to work on memory usage enhancements #1618
  • Finish side-loading snapshots #1858
  • Tighten security options of the networking layer #1867
  • Publishing scripts with blockfrost #1668

· 2 min read
Marcin Szamotulski

Overview of sprint 82​

Extensible Ouroboros Diffusion​

We merged the extensible diffusion PR.

This PR will allow us to build mithril diffusion using ouroboros-network, and more generally, it makes it much easier to develop and deploy one's own decentralised applications based on ouroboros-network. This is part of the ouroboros-network-0.20 release, which will be included in cardano-node-10.3.

Ouroboros-Network-0.20​

We released ouroboros-network-0.20 to CHaP. All released changes are listed in [this table][on-0.20]. The most important changes are:

Removal of NonP2P code base​

We merged Removal of NonP2P Network Components PR. This change will be integrated no sooner than cardano-node-10.4. If you're still using In the NonP2P mode, please upgrade to P2P. Initiator-only mode for local root peers (#5020) is available in the pre-release cardano-node-10.2.1 and future releases. See the, to be published, documentation update.

· One min read
Damian Nadales

High level summary​

  • Added a significant amount of content to the Consensus blueprint documentation. There are new sections that describe different aspects of the Consensus layer (such as chain selection or ledger queries), Storage layer, and Mempool.
  • Javier and Nick, two of the Consensus team members participated in the Cardano Dev Pulse Podcast where they discussed UTXO-HD and Genesis.

· 2 min read
Jean-Philippe Raynaud

High level overview​

This week, the Mithril team continued implementing incremental certification of the Cardano database, focusing on feature stabilization, production readiness, testing, and optimization. They also worked on implementing a prototype 'slave' mode of the aggregator to support the signer registration across multiple aggregators. Additionally, they kept working on supporting the upcoming Cardano node v.10.2.

Finally, the team continued investigating the source of failing builds in the Hydra CI and worked on setting up code ADRs in the repository.

Low level overview​

  • Completed the issue Enhance artifact structure for Incremental Cardano DB #2291
  • Completed the issue Enhance computation of required disk space for Incremental Cardano DB in client CLI #2292
  • Completed the issue Add integration test for Incremental Cardano DB client #2328
  • Worked on the issue Optimize artifact downloads when restoring an Incremental Cardano DB #2327
  • Worked on the issue Document Incremental Cardano DB usage in the clients #2329
  • Worked on the issue Use consistent naming in the client Cardano database APIs #2248
  • Worked on the issue Implement a slave mode for the signer registration in the aggregator #2334
  • Worked on the issue Add integration test for mode for the signer registration in the aggregator #2335
  • Worked on the issue Create a Code ADR record in the repository #2342
  • Worked on the issue Hydra CI fails with OpenSSL error on Linux x86_64 runners #2295
  • Worked on the issue Upgrade to Cardano 10.2 #2333

· 2 min read
John Lotoski

High level summary​

The SRE team continues work on Cardano environment improvements and general maintenance.

Some notable recent changes, updates or improvements include:

  • Cardano-node and cardano-cli pre-release (-ng) are now set to 10.2.1 and 10.4.0.0, respectively, in cardano-parts.

  • IoE Sanchonet environment and resources were retired.

  • Cardano-parts added module and template support for SRV DNS records which an upcoming version of cardano-node will utilize.

Repository Work -- Merged​

Capkgs:​

  • Adjusts the package fetchClosure path to avoid store re-writing
  • Adds some just recipe env checks
  • Updates the check recipe to work with package attrs with embedded "capkgs-pr-3

Cardano-parts​

  • Sets node pre-release (-ng) to 10.2.1, cardano-cli pre-release to 10.4.0.0 and mithril-cli to v2506.0. Cleans up deprecated environments such as private, shelley-qa and sanchonet. Includes a number of improvements with details available in the release notes: cardano-parts-release-v2025-02-26

Cardano-playground​

  • Sets node pre-release (-ng) to 10.2.1, cardano-cli pre-release to 10.4.0.0 and mithril-cli to v2506.0. Cleans up deprecated environments such as private, shelley-qa and sanchonet. More detail is available in the PR description. cardano-playground-pr-41

Cardano-mainnet​

  • Sets node pre-release (-ng) to 10.2.1, cardano-cli pre-release to 10.4.0.0 and mithril-cli to v2506.0. Cleans up deprecated environments such as private, shelley-qa and sanchonet. More detail is available in the PR description. cardano-mainnet-pr-31

Iohk-nix​

  • This PR removes cardano-lib private, sanchonet, shelley_qa and legacy testnet environments, all of which are shutdown. It also adds a default peer snapshot file per environment, updates the usePeersFromLedgerAfterSlot value per environment, cleans up some unused code and makes some lsp lint suggested changes: iohk-nix-pr-593

Repository Work In Progress -- PRs and Branches​