High level summary​

• Implemented the new diffusion pipelining criterion.
• Presented, reviewed and merged the March milestone for Genesis.
• Integrated latest changes into Node version 8.10.
• Regarding the UTXO-HD feature we:
  • Completed fixes in test-suites from cardano-node, cardano-api, and ouroboros-consensus. All tests are passing in latest prototype.
  • Prepared UTXO-HD prototype for LMDB benchmarking.
  • Fixed tracing in cardano-node.
  • Started merging code from the UTXO-HD branch into main (1053, 1052, and 1054).
• We're currently working on getting rid of NoThunks errors in Consensus, so that we can enable these tests in CI, for extra assurance.

High level summary​

The DBSync team has released 1 version for mainnet 13.2.0.1 and 3 pre-releases for sanchonet 4.0.0, 4.1.0, 4.2.0. We have continued the integration of Conway (CIP-1694) and the support of off-chain data (CIP-100)

Lower level summary​

• CI build and docker fixes #1670 #1668 #1667 #1662

• Improved committee representation #1662 #1571 #1633

• Offchain metadata partial support #1654

• Refactoring and tech-debt #1635

• Fixing epoch_stake_progress #1620

• Config and modulatirty improvements #1653 #1652

• Updating to node-8.10-pre. Better support for deposits, refunds and proposal state #1673

High level overview​

This week, the Mithril team continued implementing the certification of Cardano transactions in Mithril networks. They worked on scaling the signature and proof generation for mainnet with the compression of the transaction Merkle tree by using sub-Merkle trees of transactions by block ranges. They also made progress in designing low latency certification, investigated a memory leak in the signature/proof process, and worked on retrieving the tip of the chain with the Pallas chain observer. The team almost completed the prototype for decentralizing signer registration with the relay and a peer-to-peer (P2P) network. Additionally, they completed the refactoring of the database providers of the aggregator and re-span the testing-sanchonet network following the release of Cardano node 8.10.0-pre.

Finally, the team made some optimizations on the compilation of their pre-built binaries to fix panics occurring on CPUs without ADX instructions, and created a network configuration file on the repository to facilitate automatic compatibility checks.

Low level overview​

• Completed the issue Create file with Cardano minimum versions in repository #1615
• Completed the issue Deploy testing-mainnet network #1617
• Completed the issue Refactor database module in aggregator #1583
• Completed the issue Client deprecation notice should be written in JSON when --json option is used #1616
• Completed the issue Activate portable feature in mithril-stm by default #1613
• Completed the issue Prepare testing-sanchonet for respin with Cardano 8.10 #1618
• Worked on the issue Store Block Range Merkle roots in signer and aggregator databases #1633
• Worked on the issue Memory leak in Cardano transactions signature/proof #1629
• Worked on the issue Mithril relay broadcasts signer registrations with P2P PubSub #1587
• Worked on the issue ChainObserver supports retrieving the Chain Point of the tip of the chain #1589
• Worked on the issue Add section for manual setup of squid in SPO guide #1610
• Worked on the issue Mithril Signer Local Error Policy : Error 182 - MuxError #1632

2024-04-01 - 2024-04-15

High level summary​

Adding support for script based committee members certificates: authorization and resignation. It is now possible to convert extended signing Drep and Committee keys to a Shelley-format key. Improvements to Conway era tests. Use threshold instead of quorum for committee members.

cardano-cli​

• Provide a default value for calculate-min-fee --reference-script-size
• Improvements to governance tests
• Add transaction metadata golden test
• key non-extended-key: make pattern matches exhaustive, so that we are notified of possible extensions
• foldSomeAddressVerificationKey->mapSomeAddressVerificationKey
• Enable both --cold-script-file and --cold-script-hash for committee auth and resig commands
• Fix inversion in --include-stake parser + print "stake" field even when there is no stake (do not hide stake absence)
• Release cardano-cli-8.22.0.0
• Fix broken golden tests
• Fix protocol params order for minFeeA and minFeeB
• convert-cardano-address-key: support DRep and CC keys
• updating cli to use threshold instead of quorum for constitutional co…

cardano-api​

• Sort metadata keys for no-schema json for canonical CBOR
• Add support for CC keys in the SomeAddressVerificationKey type
• Implement estimateBalancedTxBody and estimateOrCalculateBalancedTxBody
• Release cardano-api-8.44.0.0
• LedgerState.hs improvements

cardano-testnet​

• Updated copyright
• Set NumThreads to 1 in cardano-testnet-test
• Remove manual DRep registration from InfoAction test
• DRep deposits test
• Add tx fee check to hprop_transaction
• cardano-testnet: Avoid rewrite of sgMaxLovelaceSupply

docs​

CI & project maintenance​

High-level summary​

This week, the Hydra team fixed a bug in the smoke test and refactored to allow network functions to distinguish between inbound and outbound. The team also prepared a cardano-api 8.44 branch for cardano-node 8.10 once it gets released. They also contributed to the cardano-ledger-api by undeprecating and exposing redeemerPointer.

What did the team achieve this week​

• Fix FaucetFailedToBuildTx in smoke test #1384
• Refactoring to allow network functions to distinguish between inbound and outbound
• Prepared a cardano-api 8.44 branch, but got blocked 👇
• Undeprecate redeemerPointer and expose it in cardano-ledger-api cardano-ledger#4259

What are the goals of next week​

• Complete new /commit endpoint interface #1350
• Refactor to allow NodeLogic to pass through connection messages, to unblock 👇
• Use versioned handshake when connecting hydra-nodes #1010
• Test all combinations of decrement/close/fanout for #1057
• Meet with tech writers about the landing page