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

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:

• Extensible diffusion
• Mux: bind threads to a capability: cardano-node-10.3 will come with a new (experimental) option that will allow the bind mini-protocol threads to lower capabilities, leaving two capabilities free for other work.
• LocalTxMonitor: Add support for GetMeasures
• New start strategy for mini-protocols
• use network-3.2.7

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.

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.

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

2025-02-15T00:00:00Z - 2025-02-28T00:00:00Z

High level summary​

• cardano-cli updates

  • Added Plutus script cost calculation for existing transactions
  • Implemented property test watchdog for better testing
  • Bumped cardano-api dependency to 10.9.0.0
  • Set hex as default output format for binary query utxo
  • Began RIO monad integration (part 1)
  • Refactored module structure to be domain-oriented
  • Standardized on fourmolu for code formatting

• cardano-api improvements

  • Added execution units check in transaction autobalancing tests
  • Included transaction creation examples in Haddock docs
  • Fixed governance action handling in transaction balancing
  • Enhanced witness count estimation to include simple scripts
  • Split compatible transaction building and signing logic
  • Migrated from cryptonite to crypton library
  • Standardized on fourmolu for code formatting
  • Updated CHaP index and flake inputs

• cardano-testnet updates

  • Fixed testnet test configuration
  • Optimized testnet code by removing unused indirections
  • Removed unused custom node configuration file option
  • Updated transaction submission handling

cardano-cli​

• Add command to calculate plutus script costs from an already constructed transaction
• Add watchdog for property tests in cardano-cli-test
• Bump cardano-api to 10.9.0.0
• Default to hex for binary query utxo output
• Integrate RIO monad part 1
• Refactor modules structure to make it more domain-related instead of function-related
• Remove stylish haskell. Use only fourmolu for formatting.

cardano-api​

• Add execution units check in transaction autobalancing test
• Added examples of transaction creation to Haddock
• Fix missing gov action on balance transaction
• Fix typo in cardano-api's change log
• Modify estimateTransactionKeyWitnessCount to estimate simple scripts too
• Remove stylish haskell. Use only fourmolu for formatting.
• Split compatible transaction building and signing
• Switch cryptonite to crypton
• Update CHaP index state and flake input

cardano-node​

• cardano-testnet-test: fix a test stanza
• cardano-testnet: avoid a useless indirection
• cardano-testnet: remove possibility to programmatically pass a custom node configuration file (it was unused)
• cardano-testnet: use new output of "transaction submit"

cardano-testnet​

• None

docs​

• None

CI & project maintenance​

• None