High level summary​

Over the past two weeks, we worked on establishing a first baseline for the Consensus QTA (#1256). This work is also helping inform discussions with the Networking team about sync performance goals in general and for specific improvements, such as Genesis.

UTXO-HD was rebased atop main and the tests are passing.

Finally, the team has also worked to improve the Consensus layer's robustness and security.

High level overview​

The Mithril team continued working on decentralizing the signature orchestration of the Mithril network. They completed the development of a mechanism to support specific configurations for signing Cardano transactions and kept implementing the autonomous computation of the messages to be signed by the signer. They also activated the certification of the Cardano transactions on the release-mainnet network.

Finally, they started creating a new Mithril era and prepared to upgrade to Cardano node version 9.2.1.

Low level overview​

• Updated a dev blog post about the Certification of Cardano transactions
• Completed the issue Aggregator advertises constant signing configurations for an epoch #1924
• Completed the issue Breaking change in crane fails Hydra CI #1928
• Completed the issue Discrepancy of protocol parameters in epoch settings and pending certificates routes #1963
• Worked on the issue Signer computes what to sign on its own #1925
• Worked on the issue Aggregator uses stored signing configurations when creating signed entity type #1961
• Worked on the issue Prepare new Pythagoras Mithril era #1946
• Worked on the issue Upgrade to Cardano 9.2.1 #1968

2024-09-18T00:00:00Z - 2024-10-02T00:00:00Z

High level summary​

• We continue to remove irrelevant eras from cardano-cli with an aim to simplify the Haskell code and the interface exposed to the user.
• During a working group meeting a user pointed out the possibility to specify an incorrect anchor data hash. This has been largely rectified in cardano-cli but there is some more work to be done particularly in the transaction build command.
• We added the possibility to specify supplemental datums and other minor improvements in this sprint.

cardano-cli​

• Add a test of create-cardano
• Add anchor data hash checks to remaining governance action commands
• Add hash validation and support for HTTP(S) and IPFS to command hash anchor-data
• Add proposal hash check when creating info governance action
• create-testnet-data: take optional node configuration file as input and check/add genesis hashes and paths
• Remove era|legacy transaction view
• Remove eras older than Babbage support in transaction build and transaction build-estimate
• Remove legacy commands
• Update create-treasury-withdrawal

cardano-api​

• 638-Allow next leadership-schedule at 4k/f
• Add new field 'inlineDatumRaw' to TxOut ToJSON instance
• Introduce supplementary datums
• Make IsXXXBasedEra a class hierarchy

cardano-node​

• cardano-node 9.2.0 release
• cardano-tracer: Allow switching EKG service between different nodes.
• cardano-tracer: OpenMetrics compliance for Prometheus; fix forHuman output in journald

cardano-testnet​

• cardano-testnet: Code sharing in Defaults.hs
• cardano-testnet: rename ShelleyTestnetOptions into GenesisOptions

docs​

CI & project maintenance​

Overview of sprint 71​

Security Policy​

According to IntersectMBOs Open-Source Committee guidance, we updated our security policy.

Tx-Submission​

We have been working on the integration of the new tx-submission inbound side with cardano-node.

New Typed-Protocols API​

We published typed-protocols-0.3.0.0 to CHaP. It includes changes to the typed-protocols-stateful API. The added changes allow us to simplify LocalStateQuery mini-protocol, particularly the MsgResult doesn't include the request type (e.g. query result). It is provided to the codec using the associated local state mechanism instead. See typed-protocols#61, chap#911.

The integration of typed-protocols-0.3.0.0 with ouroboros-network was merged to the master branch, see ouroboros-network#4935.

The integration of this work stream with cardano-node is tracked on ouroboros-network#4936.

cardano-node-9.3​

We started working on cardano-node-9.3 release.

CI​

• We improved the check-stylish.sh script: ouroboros-network#4963.
• We refactored the ouroboros-network.cabal file: ouroboros-network#4964.
• We refactored the nix configuration: ouroboros-network#4968, which is continued in ouroboros-network#4969.
• We wrote a patch to fix the nightly build: ouroboros-network#4970.

High level summary​

Aside from more testing and overall quality-of-life improvements on the ledger test suite side, we have implemented a couple of important features that will be enabled after the next intra-era hard fork:

• Translation of RegTxCert and UnRegTxCert to PlutusV3 scripts context will now be done correctly, which means deposit and refund respectively, will actually be translated.
• Treasury withdrawals that are empty or sum up to zero will no longer be allowed.

Some performance improvements and a bug fix to a ledger event were also implemented during this period.

Low level summary​

Features​

• pull-4623 - Change GovInfoEvent's "unclaimed" field from Set to a Map
• pull-4627 - Fix Conway implementation of RegTxCert and UnRegTxCert
• pull-4643 - Improve certificate performance
• pull-4630 - Disallow empty withdrawals
• pull-4646 - Don't return ZeroTreasuryWithdrawals failure during bootstrap

Testing​

• pull-4497 - Show coloured tree-diff output in ImpTests
• pull-4615 - Prevent HSpec from messing with ImpSpec colors
• pull-4625 - Additional DELEG tests
• pull-4599 - Move TxInfo golden tests to new package
• pull-4629 - Add TxInfo golden test for Conway
• pull-4575 - Ts salvage newtylespecs

Infrastructure and releasing​

• pull-4624 - Remove upper bound on plutus-ledger-api
• pull-4626 - Fix CODEOWNERS
• pull-4638 - Implement ghc heap limiting and retrying in CI
• pull-4644 - Cardano ledger conway 1.16.2.0