Logbook 2025 H2

Certification stopped on mainnet and preview network #2805: we are still experimenting problems with the pre-release-preview network which has resumed certification but not on all signed entity types. We need to have the SPOs running on this network reset their Cardano database cache before the service can resume consistently
Implement a simple aggregator discovery mechanism #2726: the draft PR feat: simple aggregator discovery #2779 has been updated and will be ready for review shortly
Enhance e2e test to support the introduction of new features #2781: the PR ci: add a backward compatibility checks to the end-to-end runner #2816 has been merged. The issue is closed
Enhance reliability of backward compatibility test #2760: the issue is closed
Upgrade to Cardano 10.6 #2790: we have postponed the work on Cardano 10.6 until a version is created which embeds the fix from 10.5.2
Implement Jubjub/Poseidon backends wrappers in Schnorr signature scheme #2817: we have kept working on the issue
Re-organize modules of STM library #2793: the PR SNARK-friendly STM: Re-organize modules #2804 is being reviewed and will be ready to be merged shortly
Feasibility of Bitcoin Defi usecase #2818: we have been able to generate a Groth16 proof from a Halo2 proof with risc0 in 35 minutes with GPU acceleration 🎉 We are investigating how to accelerate further the proof generation
feat: stabilize cardano database v2 - phase4 - wasm client: the PR has been create d and is pending review
Monthly report October 2025 #32: the PR has been reviewed and merged
We have also rotated the KES keys of the test SPOs we operate on the release-preprod, pre-release-preview and testing-preview networks

2025-11-27

Certification stopped on mainnet and preview network #2805: we are still experimenting problems with the pre-release-preview network which needs few more epoch before being able to resume certification
Implement a simple aggregator discovery mechanism #2726: the draft PR feat: simple aggregator discovery #2779 has been updated
Implement Schnorr signature scheme in STM #2756: the PR Added file structure for Schnorr signature module. #2761 has been reviewed and merged. The issue is closed
Enhance e2e test to support the introduction of new features #2781: the PR ci: add a backward compatibility checks to the end-to-end runner #2816 has been reviewed. We are still working on a problem due to nix filesystem. We will merge the PR shortly
Enhance reliability of backward compatibility test #2760: we have kept working on the issue
Upgrade to Cardano 10.6 #2790: we have postponed the work on Cardano 10.6 until a version is created which embeds the fix from 10.5.2
Implement Jubjub/Poseidon backends wrappers in Schnorr signature scheme #2817: we have started to work on the issue
Re-organize modules of STM library #2793: the PR SNARK-friendly STM: Re-organize modules #2804 has been created and is being reviewed
Feasibility of Bitcoin Defi usecase #2818: we have started to work on the issue and investigate the creation of a Halo2 to Groth16 proof converter with risc0
Monthly report October 2025 #32: the draft PR is pending completion by the Hydra team
We have also prepared the sprint planning for the next iteration

2025-11-26

Certification stopped on mainnet and preview network #2805: we are still experimenting problems with the pre-release-preview network which needs few more epochs before being able to resume certification
Implement a simple aggregator discovery mechanism #2726: the draft PR feat: simple aggregator discovery #2779 has been updated
Implement Schnorr signature scheme in STM #2756: the PR Added file structure for Schnorr signature module. #2761 has been updated and reviewed. It is ready to be merged
Enhance e2e test to support the introduction of new features #2781: the PR ci: add a backward compatibility checks to the end-to-end runner #2816 has been created and reviewed. It is ready to be merged
Enhance reliability of backward compatibility test #2760: we have kept working on the issue
Upgrade to Cardano 10.6 #2790: we have postponed the work on Cardano 10.6 until a version is created which embeds the fix from 10.5.2
Implement Jubjub/Poseidon backends wrappers in Schnorr signature scheme #2817: the issue has been created and groomed
Feasibility of Bitcoin Defi usecase #2818: the issue has been created and groomed
Monthly report October 2025 #32: the draft PR is pending completion by the Hydra team

2025-11-25

Certification stopped on mainnet and preview network #2805: we have fixed the problem we had on the preview Cardano nodes by temporarily falling back on the Praos consensus. The testing-preview has resumed certification, the pre-release-preview has been re-genesis and should resume certification tomorrow
Implement a simple aggregator discovery mechanism #2726: the draft PR feat: simple aggregator discovery #2779 has been updated
Implement Schnorr signature scheme in STM #2756: the PR Added file structure for Schnorr signature module. #2761 has been updated and reviewed. It will be ready to be merged shortly
Enhance e2e test to support the introduction of new features #2781: the developments have been pushed to the djo/2781/e2e-backcompat branch
Enhance reliability of backward compatibility test #2760: we have kept working on the issue
Upgrade to Cardano 10.6 #2790: we have postponed the work on Cardano 10.6 until a version is created which embeds the fix from 10.5.2
Adapt the certificate chain for SNARK proof system #2810: the epic has been created and groomed
Prepare new Lagrange Mithril era for SNARK support #2809: the issue has been created and groomed
Adapt certificate chain to support SNARK AVK #2811: the issue has been created and groomed
Prepare SNARK support in Mithril nodes #2812: the epic has been created and groomed
Update protocol parameters to SNARK friendly values #2813: the issue has been created and groomed
Activate future_snark feature by default #2814: the issue has been created and groomed
Add a new guide on how to setup a follower aggregator #2815: the issue has been created and groomed
Monthly report October 2025 #32: the draft PR is pending completion by the Hydra team

2025-11-24

Certification stopped on mainnet and preview network #2805: the certification has resumed on the release-mainnet network. We are still experiencing difficulties to have the Cardano nodes we operate on the preview network select the correct fork and we have been investigating the problem: it appears that this could be fixed by temporary switching to Praos mode. We are working on a fix
Implement a simple aggregator discovery mechanism #2726: the draft PR feat: simple aggregator discovery #2779 has been updated
Implement Schnorr signature scheme in STM #2756: the PR Added file structure for Schnorr signature module. #2761 has been updated and is being reviewed
Enhance e2e test to support the introduction of new features #2781: the developments have been pushed to the djo/2781/e2e-backcompat branch
Enhance reliability of backward compatibility test #2760: we have kept working on the issue
Upgrade to Cardano 10.6 #2790: we have postponed the work on Cardano 10.6 until a version is created which embeds the fix from 10.5.2
Recursive SNARK PoC #2807: the issue has been created and groomed
Compute the IVC state with SHA256 in the recursive circuit #2806: the issue has been created and groomed
How to support Genesis certificate in recursive circuit #2808: the issue has been created and groomed
Monthly report October 2025 #32: the draft PR is pending completion by the Hydra team

2025-11-21

Certification stopped on mainnet and preview network #2805: the bug issue has been created and we have worked on it. We are waiting for the networks to resume certification
Implement a simple aggregator discovery mechanism #2726: the draft PR feat: simple aggregator discovery #2779 has been updated
Implement Schnorr signature scheme in STM #2756: the draft PR Added file structure for Schnorr signature module. #2761 has been updated
Enhance e2e test to support the introduction of new features #2781: we have started to work on the issue
Upgrade to Cardano 10.6 #2790: the issue has been created and groomed. We have started to work on it
Enhance reliability of backward compatibility test #2760: we have started to work on the issue
Monthly report October 2025 #32: the draft PR is pending completion by the Hydra team
We have also made sure that no test SPOs we operate needed to have their KES keys rotated

2025-11-20

Implement a simple aggregator discovery mechanism #2726: the draft PR feat: simple aggregator discovery #2779 has been updated
Implement Schnorr signature scheme in STM #2756: the draft PR Added file structure for Schnorr signature module. #2761 has been updated
Architecture of the SNARK-friendly STM library #2763: the issue is closed
Refactor errors in STM library #2764: the PR Stm error handling with anyhow #2765 has been merged. The issue is closed
Support optional cardano_transactions_signing_config #2780: the PR refactor: support optional cardano transaction signing config #2789 has been merged. The issue is closed
Enhance e2e test to support the introduction of new features #2781: we have started to work on the issue
Upgrade to Cardano 10.6 #2790: the issue has been created and groomed. We have started to work on it
Refactoring STM library for SNARK-friendliness #2791: the epic has been created and groomed
Prepare Halo2 circuit implementation MVP #2796: the epic has been created and groomed
Re-organize modules of STM library #2793: the issue has been created and groomed
Simplify code of STM library #2794: the issue has been created and groomed
Implement SNARK-friendly changes in STM library #2795: the issue has been created and groomed
Implement SNARK pre-aggregation primitives in STM library #2792: the issue has been created and groomed
Prepare specifications for the Mithril circuit #2797: the issue has been created and groomed
Support test mode for the Halo2 circuit #2798: the issue has been created and groomed
Assess constraints on Halo2 circuit verification #2799: the issue has been created and groomed
Trusted setup for Mithril Halo2 SNARKs #2800: the issue has been created and groomed
Detect an under constrained Halo2 circuit #2801: the issue has been created and groomed
Midnight ZK library audit status #2802: the issue has been created and groomed
Impact of SNARK on Mithril protocol security #2803: the issue has been created and groomed
Monthly report October 2025 #32: the draft PR is pending completion by the Hydra team

2025-11-19

Implement a simple aggregator discovery mechanism #2726: the draft PR feat: simple aggregator discovery #2779 has been updated
Implement Schnorr signature scheme in STM #2756: the draft PR Added file structure for Schnorr signature module. #2761 has been updated
Architecture of the SNARK-friendly STM library #2763: the prototype at jpraynaud/prototype-snark-friendly-stm branch is being reviewed
Refactor errors in STM library #2764: the PR Stm error handling with anyhow #2765 has been reviewed and is ready to be merged
Support optional cardano_transactions_signing_config #2780: the PR refactor: support optional cardano transaction signing config #2789 has been created, reviewed and is ready to be merged
Test Haskell DMQ node message authentication (KES signature) #2786: we have successfully tested the KES verification of the messages in the n2n mini-protocol implemented by the DMQ node. The issue is closed
fix(ci): support hotfix branches in backcompat workflow #2787: the PR has been created, reviewed and merged
fix: docs and explorer websites vulnerabilities #2788: the PR has been created, reviewed and merged
Monthly report October 2025 #32: the draft PR is pending completion by the Hydra team

2025-11-18

Implement a simple aggregator discovery mechanism #2726: the draft PR feat: simple aggregator discovery #2779 has been updated
Implement Schnorr signature scheme in STM #2756: the draft PR Added file structure for Schnorr signature module. #2761 has been updated
Architecture of the SNARK-friendly STM library #2763: the prototype at jpraynaud/prototype-snark-friendly-stm branch is being reviewed
Refactor errors in STM library #2764: the draft PR Stm error handling with anyhow #2765 has been updated and is being reviewed
Support optional cardano_transactions_signing_config #2780: we have started to work on the issue and a PR will be created shortly
Test Haskell DMQ node message authentication (KES signature) #2786: the issue has deen created and groomed, and we have started to work on it
Monthly report October 2025 #32: the draft PR is pending completion by the Hydra team

2025-11-17

Implement a simple aggregator discovery mechanism #2726: the draft PR feat: simple aggregator discovery #2779 has been updated
Implement Schnorr signature scheme in STM #2756: the draft PR Added file structure for Schnorr signature module. #2761 has been updated
Architecture of the SNARK-friendly STM library #2763: the developments are being updated on the jpraynaud/prototype-snark-friendly-stm branch
Refactor errors in STM library #2764: the draft PR Stm error handling with anyhow #2765 has been updated and is pending review
Add fast bootstrap of Cardano node with LMDB UTxO-HD verification in CI #2679: the PR ci(test-client): check fast bootstrap after lmdb conversion #2778 has reviewed and merged. The issue is closed
Some tests fail in CI due to no space left on GitHub runners #2782: the bug issue has been created and the PR ci(test-client): check fast bootstrap after lmdb conversion #2778 has been created, reviewed and merged. The issue is closed
Support optional 'cardano_transactions_signing_config' #2780: the issue has been created and groomed. We have started to work on it
Enhance e2e test to support the introduction of new features #2781: the issue has been created and groomed
Monthly report October 2025 #32: the draft PR is pending completion by the Hydra team

2025-11-14

Implement a simple aggregator discovery mechanism #2726: the draft PR feat: simple aggregator discovery #2779 has been created
Implement Schnorr signature scheme in STM #2756: the draft PR Added file structure for Schnorr signature module. #2761 has been updated
Architecture of the SNARK-friendly STM library #2763: the developments are being updated on the jpraynaud/prototype-snark-friendly-stm branch
Refactor errors in STM library #2764: the draft PR Stm error handling with anyhow #2765 is being updated
Add fast bootstrap of Cardano node with LMDB UTxO-HD verification in CI #2679: the PR ci(test-client): check fast bootstrap after lmdb conversion #2778 has been created and is pending review
Monthly report October 2025 #32: the draft PR has been created and is pending completion by the Hydra team
We have also checked if some of our test SPOs needed their KES keys to be rotated which was not the case

2025-11-13

Decentralization of configuration parameters - Phase 1 #2692: the PR Decentralization of configuration parameters phase 1 - Aggregator local parameters #2736 has been reviewed and merged. The issue is closed
Implement a simple aggregator discovery mechanism #2726: the developments are available on the jpraynaud/2726-simple-aggregator-discovery branch
Implement Schnorr signature scheme in STM #2756: the draft PR Added file structure for Schnorr signature module. #2761 has been updated
Architecture of the SNARK-friendly STM library #2763: the developments have been pushed to the jpraynaud/prototype-snark-friendly-stm branch
Refactor errors in STM library #2764: the draft PR Stm error handling with anyhow #2765 is being updated
Refactor AggregatorClient trait in signer #2759: the PR refactor(signer): split signer aggregator client into several small business services #2775 has been merged. The issue is closed
Add fast bootstrap of Cardano node with LMDB UTxO-HD verification in CI #2679: the developments have been pushed to the djo/2679/ci/test-client-check-fast-bootstrap-after-lmdb-conversion branch
We have also prepared the sprint planning for the next iteration

2025-11-12

Decentralization of configuration parameters - Phase 1 #2692: the PR Decentralization of configuration parameters phase 1 - Aggregator local parameters #2736 is pending review
Implement a simple aggregator discovery mechanism #2726: the developments are available on the jpraynaud/2726-simple-aggregator-discovery branch
Implement Schnorr signature scheme in STM #2756: the draft PR Added file structure for Schnorr signature module. #2761 has been updated
Architecture of the SNARK-friendly STM library #2763: the developments have been pushed to the jpraynaud/prototype-snark-friendly-stm branch
Refactor errors in STM library #2764: the draft PR Stm error handling with anyhow #2765 has been updated
Refactor AggregatorClient trait in signer #2759: the PR refactor(signer): split signer aggregator client into several small business services #2775 has been created and reviewed. It will be merged shortly
Add fast bootstrap of Cardano node with LMDB UTxO-HD verification in CI #2679: we have started to work on the issue and the developments have been pushed to the djo/2679/ci/test-client-check-fast-bootstrap-after-lmdb-conversion branch

2025-11-10

Some signers have KES errors during key registration #2771: we have released the hotfix distribution 2543.1-hotfix which has been deployed on the release-mainnet and release-preprod networks. The issue is closed
Decentralization of configuration parameters - Phase 1 #2692: the PR Decentralization of configuration parameters phase 1 - Aggregator local parameters #2736 is pending review
Implement a simple aggregator discovery mechanism #2726: the developments have been pushed to the jpraynaud/2726-simple-aggregator-discovery branch
Implement Schnorr signature scheme in STM #2756: the draft PR Added file structure for Schnorr signature module. #2761 has been updated and is pending review
Architecture of the SNARK-friendly STM library #2763: the developments have been pushed to the jpraynaud/prototype-snark-friendly-stm branch
Refactor errors in STM library #2764: the draft PR Stm error handling with anyhow #2765 has been updated

2025-11-07

Some signers have KES errors during key registration #2771: we have created the bug issue for a problem that prevents the signer released with the 2543.0 distribution to sign after a restart. We have created a fix for the problem which has been deployed in a hotfix distribution 2543.1-hotfix which has been deployed on the pre-release-preview network
Decentralization of configuration parameters - Phase 1 #2692: the PR Decentralization of configuration parameters phase 1 - Aggregator local parameters #2736 has been updated and is pending review
Implement a simple aggregator discovery mechanism #2726: the developments have been pushed to the jpraynaud/2726-simple-aggregator-discovery branch
Implement Schnorr signature scheme in STM #2756: the draft PR Added file structure for Schnorr signature module. #2761 has been updated
Architecture of the SNARK-friendly STM library #2763: the developments have been pushed to the jpraynaud/prototype-snark-friendly-stm branch
Refactor errors in STM library #2764: the draft PR Stm error handling with anyhow #2765 has been updated
We have also made sure that the KES keys of our test SPOs did not need to be rotated

2025-11-06

Decentralization of configuration parameters - Phase 1 #2692: the draft PR Decentralization of configuration parameters phase 1 - Aggregator local parameters #2736 has been updated and is pending review
Implement a simple aggregator discovery mechanism #2726: the developments have been pushed to the jpraynaud/2726-simple-aggregator-discovery branch
Implement Schnorr signature scheme in STM #2756: the draft PR Added file structure for Schnorr signature module. #2761 has been updated
Architecture of the SNARK-friendly STM library #2763: the developments have been pushed to the jpraynaud/prototype-snark-friendly-stm branch
Refactor errors in STM library #2764: the draft PR Stm error handling with anyhow #2765 has been updated
Full review of SNARK circuit prototype #2769: the issue has been created and groomed
Investigate Midnight-zk overhead #2768: the issue has been created
Change hash function for support in Plutus #2766: the issue has been created and groomed
Write recursion logs #2767: the issue has been created and groomed
Follower aggregator panics in e2e tests in run-only mode #2770: the bug issue has been created
We have also prepared the path for the monthly demo

2025-11-05

Decentralization of configuration parameters - Phase 1 #2692: the draft PR Decentralization of configuration parameters phase 1 - Aggregator local parameters #2736 has been updated
Implement a simple aggregator discovery mechanism #2726: the developments have been pushed to the jpraynaud/2726-simple-aggregator-discovery branch
Implement Schnorr signature scheme in STM #2756: the draft PR Added file structure for Schnorr signature module. #2761 has been updated
Architecture of the SNARK-friendly STM library #2763: the developments have been pushed to the jpraynaud/prototype-snark-friendly-stm branch
Refactor errors in STM library #2764: the draft PR Stm error handling with anyhow #2765 has been created

2025-11-04

Decentralization of configuration parameters - Phase 1 #2692: the draft PR Decentralization of configuration parameters phase 1 - Aggregator local parameters #2736 has been updated
Implement a simple aggregator discovery mechanism #2726: the developments have been pushed to the jpraynaud/2726-simple-aggregator-discovery branch
Implement Schnorr signature scheme in STM #2756: the draft PR Added file structure for Schnorr signature module. #2761 has been updated
Architecture of the SNARK-friendly STM library #2763: the issue has been created and groomed. The developments have been pushed to the jpraynaud/prototype-snark-friendly-stm branch
Refactor errors in STM library #2764: the issue has been created and groomed

2025-11-03

Decentralization of configuration parameters - Phase 1 #2692: the draft PR Decentralization of configuration parameters phase 1 - Aggregator local parameters #2736 has been updated
Release 2543 distribution #2727: we have released the 2543.0 distribution which has been deployed on the release-mainnet and release-preprod networks. The issue is closed
Support NPM security changes with trusted publisher tokens #2745: the PR ci: enhance npm publish workflow #2753 has been merged
Implement a simple aggregator discovery mechanism #2726: we have kept working on the issue and the developments have been pushed to the jpraynaud/2726-simple-aggregator-discovery branch
Implement a common aggregator client - Phase 1 #2640: the PR refactor: use shared aggregator client for signer and aggregrator #2755 has been merged. The issue is closed
Implement Schnorr signature scheme in STM #2756: the draft PR Added file structure for Schnorr signature module. #2761 has been created
Enhance reliability of backward compatibility test #2760: the issue has been created and groomed
Refactor AggregatorClient trait in signer #2759: the issue has been created and groomed
Stabilize Cardano DB v2 client CLI/library - Phase 4 #2758: the issue has been created and groomed
We have also kept working on prototyping the refactoring of the STM library for the implementation of the Mithril SNARKs

October 2025

2025-10-31

Decentralization of configuration parameters - Phase 1 #2692: the draft PR Decentralization of configuration parameters phase 1 - Aggregator local parameters #2736 has been updated
Release 2543 distribution #2727: we have kept monitoring the 2543.0-pre pre-release distribution on the pre-release-preview network. We plan to release of the distribution early next week
Support NPM security changes with trusted publisher tokens #2745: the PR ci: enhance npm publish workflow #2753 has been reviewed and is ready to be merged. It will be merged once the new 2543 distribution is released
Implement a simple aggregator discovery mechanism #2726: the developments have been pushed to the jpraynaud/2726-simple-aggregator-discovery branch
Implement a common aggregator client - Phase 1 #2640: the PR refactor: use shared aggregator client for signer and aggregrator #2755 has been reviewed and is ready to be merged
Implement Schnorr signature scheme in STM #2756: the issue has been created and needs further grooming. We have started to work on it
We have also started to work on prototyping the refactoring of the STM library for the implementation of the Mithril SNARKs
Finally, we have checked if some of our test SPOs needed to get rotation of their KES keys

2025-10-30

Decentralization of configuration parameters - Phase 1 #2692: the draft PR Decentralization of configuration parameters phase 1 - Aggregator local parameters #2736 has been updated
Release 2543 distribution #2727: we have kept monitoring the 2543.0-pre pre-release distribution on the pre-release-preview network. We plan to release of the distribution early next week as we were missing enough testers
Support NPM security changes with trusted publisher tokens #2745: the PR ci: enhance npm publish workflow #2753 has been reviewed and is ready to be merged. It will be merged once the new 2543 distribution is released
Implement a simple aggregator discovery mechanism #2726: we have kept working on the issue and the developments have been pushed to the jpraynaud/2726-simple-aggregator-discovery branch
Snapshot download fails when both IPv4 and IPv6 are enabled #2750: we have investigated the problem reported in this issue, but we have not been ableto reproduced it. We are waiting for an answer from the creator of the issue
Implement a common aggregator client - Phase 1 #2640: the PR refactor: use shared aggregator client for signer and aggregrator #2755 has been created and is pending review
We have also kept designing the implementation of the Mithril SNARKs

2025-10-29

Decentralization of configuration parameters - Phase 1 #2692: the PR Decentralization of configuration parameters phase 1 - new aggregator route #2741 has been merged. The draft PR Decentralization of configuration parameters phase 1 - Aggregator local parameters #2736 has been updated
Release 2543 distribution #2727: we have kept monitoring the 2543.0-pre pre-release distribution on the pre-release-preview network. We plan to release of the distribution later this week
Support NPM security changes with trusted publisher tokens #2745: the PR ci: enhance npm publish workflow #2753 has been reviewed and is ready to be merged. It will be merged once the new 2543 distribution is released
Implement a simple aggregator discovery mechanism #2726: we have kept working on the issue and the developments have been pushed to the jpraynaud/2726-simple-aggregator-discovery branch
Snapshot download fails when both IPv4 and IPv6 are enabled #2750: we have investigated the problem reported in this issue, but we have not been ableto reproduced it. We are waiting for an answer from the creator of the issue
Implement a common aggregator client - Phase 1 #2640: the developments have been pushed to the djo/2640/shared-aggregator-client-for-signer-aggregrator branch
We have also kept designing the implementation of the Mithril SNARKs

2025-10-28

Decentralization of configuration parameters - Phase 1 #2692: the PR Decentralization of configuration parameters phase 1 - new aggregator route #2741 is being updated and will be merged shortly
Release 2543 distribution #2727: we have kept monitoring the 2543.0-pre pre-release distribution on the pre-release-preview network. We plan to release of the distribution later this week
Support NPM security changes with trusted publisher tokens #2745: the PR ci: enhance npm publish workflow #2753 has been reviewed and is ready to be merged
Implement a simple aggregator discovery mechanism #2726: we have kept working on the issue and the developments have been pushed to the jpraynaud/2726-simple-aggregator-discovery branch
Snapshot download fails when both IPv4 and IPv6 are enabled #2750: we have investigated the problem reported in this issue, but we have not been ableto reproduced it. We are waiting for an answer from the creator of the issue
Implement a common aggregator client - Phase 1 #2640: we have resumed the work on the issue
We have also kept designing the implementation of the Mithril SNARKs

2025-10-27

Decentralization of configuration parameters - Phase 1 #2692: the PR Decentralization of configuration parameters phase 1 - new aggregator route #2741 is pending review and it will be merged shortly
Release 2543 distribution #2727: we have kept monitoring the 2543.0-pre pre-release distribution on the pre-release-preview network. We plan to release of the distribution this week
Support NPM security changes with trusted publisher tokens #2745: we have identified a problem with the new security framework of npmjs which is not compatible yet with our deployment pipeline (where we publish the next version labeled as next when we pre-release a distribution and promote next to latest when we release a distribution). We have decided to use a token which will expire after 90 days (thus needs to be rotated before we create a new distribution) until the security framework of npmjs matches our pipeline. The PR ci: enhance npm publish workflow #2753 has been created and is being reviewed
Implement a simple aggregator discovery mechanism #2726: we have kept working on the issue
We have also kept designing the implementation of the Mithril SNARKs

2025-10-21

Decentralization of configuration parameters - Phase 1 #2692: the draft PR Decentralization of configuration parameters phase 1 - new aggregator route #2741 has been updated. We have decided to change the format of the MithrilNetworkConfiguration struct to provide the protocol parameters/signing configs for the different epochs/usage: signer registration, next aggregation, current aggregation. This will help simplify the handling of epoch offsets
Release 2543 distribution #2727: we have created the 2543.0-pre pre-release distribution and it has been deployed on the pre-release-preview network. We plan to release of the distribution next week
Support NPM security changes with trusted publisher tokens #2745: we have started to work on the issue
Implement a simple aggregator discovery mechanism #2726: we have started to work on the issue
We have also kept designing the implementation of the Mithril SNARKs

2025-10-20

Decentralization of configuration parameters - Phase 1 #2692: the draft PR Decentralization of configuration parameters phase 1 - new aggregator route #2741 has been updated
Integrate the Haskell DMQ node in the infrastructure, e2e and documentation #2674: the PR feat: integrate real DMQ network in the devnet and e2e tests #2710 has been merged. The PR refactor(network): finalize DMQ implementation #706 has been reviewed and merged. The issue is closed
Release 2543 distribution #2727: we have prepared the preliminary steps and we expect to create the pre-release tomorrow
Cardano node compatibility in GitHub release notes #2743: the PR feat: add Cardano compatibility in release notes #2742 has been reviewed and merged. The issue is closed

2025-10-19

Decentralization of configuration parameters - Phase 1 #2692: the draft PR Decentralization of configuration parameters phase 1 - new aggregator route #2741 has been updated
Integrate the Haskell DMQ node in the infrastructure, e2e and documentation #2674: the draft PR feat: integrate real DMQ network in the devnet and e2e tests #2710 has been reviewed. The PR refactor(network): finalize DMQ implementation #706 is pending review
Provide Cardano database incremental snapshots needed for Amaru bootstrap #2704: the PR feat: add fetching cardano database snapshots by epoch in client and cli #2744 has been reviewed and merged. The issue is closed
Release 2543 distribution #2727: we will resume working on the issue once the final list of features to be added to the distribution is complete
Cardano node compatibility in GitHub release notes #2743: the PR feat: add Cardano compatibility in release notes #2742 has been reviewed and merged. The issue is closed

2025-10-18

Decentralization of configuration parameters - Phase 1 #2692: the draft PR Decentralization of configuration parameters phase 1 - new aggregator route #2741 has been updated
Integrate the Haskell DMQ node in the infrastructure, e2e and documentation #2674: the draft PR feat: integrate real DMQ network in the devnet and e2e tests #2710 is pending review. The PR refactor(network): finalize DMQ implementation #706 is pending review
Provide Cardano database incremental snapshots needed for Amaru bootstrap #2704: the PR feat: add fetching cardano database snapshots by epoch in client and cli #2744 has been created and is being reviewed
Release 2543 distribution #2727: the PR chore: update dependencies for distribution 2543 is reviewed and merged. We will resume working on the issue once the final list of features to be added to the distribution is complete
Cardano node compatibility in GitHub release notes #2743: the PR feat: add Cardano compatibility in release notes #2742 is being reviewed
Support NPM security changes with trusted publisher tokens #2745: the issue has been created and groomed
Check external crates license compatibility in CI #2746: the issue has been created and groomed

2025-10-17

Decentralization of configuration parameters - Phase 1 #2692: the draft PR Decentralization of configuration parameters phase 1 - new aggregator route #2741 has been created
Integrate the Haskell DMQ node in the infrastructure, e2e and documentation #2674: the draft PR feat: integrate real DMQ network in the devnet and e2e tests #2710 is pending review. The PR refactor(network): finalize DMQ implementation #706 is pending review
Provide Cardano database incremental snapshots needed for Amaru bootstrap #2704: the developments have been pushed to the https://github.com/input-output-hk/mithril/compare/main...djo/2704/cdb-by-epoch-in-client branch
Release 2543 distribution #2727: the PR chore: update dependencies for distribution 2543 is pending review
Cardano node compatibility in GitHub release notes #2743: the issue has been created and groomed. The PR feat: add Cardano compatibility in release notes #2742 has been created and is pending review
We have also verified than none of our test SPOs needed to have KES keys rotated

2025-10-16

Decentralization of configuration parameters - Phase 1 #2692: we have worked on fixing the design issue when implementing the modifications in the aggregator, and we have paired on a solution. A new draft PR will be created shortly
Integrate the Haskell DMQ node in the infrastructure, e2e and documentation #2674: the draft PR feat: integrate real DMQ network in the devnet and e2e tests #2710 is pending review. The PR refactor(network): finalize DMQ implementation #706 is pending review
Provide Cardano database incremental snapshots needed for Amaru bootstrap #2704: we have kept working on the issue and the development have been pushed to the https://github.com/input-output-hk/mithril/compare/main...djo/2704/cdb-by-epoch-in-client branch
Release 2543 distribution #2727: the PR chore: update dependencies for distribution 2543 has been created and is pending review
We have also prepared the sprint planning for the next iteration

2025-10-15

Decentralization of configuration parameters - Phase 1 #2692: we have worked on fixing the design issue when implementing the modifications in the aggregator, and we have paired on a solution. A new draft PR will be created shortly
Integrate the Haskell DMQ node in the infrastructure, e2e and documentation #2674: the draft PR feat: integrate real DMQ network in the devnet and e2e tests #2710 is pending review. The PR CIP-0137 | Fix protocol specifications #1094 has been reviewed and merged. The PR refactor(network): finalize DMQ implementation #706 is pending review
Provide Cardano database incremental snapshots needed for Amaru bootstrap #2704: we have kept working on the issue and the development have been pushed to the https://github.com/input-output-hk/mithril/compare/main...djo/2704/cdb-by-epoch-in-client branch
Release 2543 distribution #2727: the issue has been groomed and we have started to work on it

2025-10-14

Decentralization of configuration parameters - Phase 1 #2692: the draft PR Decentralization of configuration parameters phase 1 - Aggregator local parameters #2736 has been updated. We have noticed a design issue when implementing the modifications in the aggregator, and we have paired on a solution. We have prepared a preliminary list of complementary steps to be done to fix the problem
Integrate the Haskell DMQ node in the infrastructure, e2e and documentation #2674: the draft PR feat: integrate real DMQ network in the devnet and e2e tests #2710 is pending review. The PR CIP-0137 | Fix protocol specifications #1094 has been created and is pending review. The PR refactor(network): finalize DMQ implementation #706 has been created and is pending review
Provide Cardano database incremental snapshots needed for Amaru bootstrap #2704: we have kept working on the issue
Implement a common aggregator client - Phase 1 #2640: the PR chore(client-lib): deprecate current aggregator client and related builder functions #2738 has been reviewed and merged
Mithril signer should have a unique protocol initializer for an epoch #2424: the PR feat: use unique ProtocolInitializer per epoch in signer #2739 reviewed and merged. The issue is closed

2025-10-13

Enhance STM library readability 1/2 #2568: the PR Enhance STM library readability - Golden tests #2642 has been reviewed and merged. The issue is closed
Decentralization of configuration parameters - Phase 1 #2692: the PR Decentralization of configuration parameters phase 1 #2702 has been merged. The draft PR Decentralization of configuration parameters phase 1 - Aggregator local parameters #2736 has been created
Integrate the Haskell DMQ node in the infrastructure, e2e and documentation #2674: the draft PR feat: integrate real DMQ network in the devnet and e2e tests #2710 has been updated. The draft PR CIP-0137 | Fix protocol specifications #21 has been updated. The update of Pallas library is on the cardano-scaling:pallas:jpraynaud/fix-dmq-facade branch, and a PR will be created shortly
Provide Cardano database incremental snapshots needed for Amaru bootstrap #2704: the PR feat: add /artifact/cardano-database/epoch/{epoch} route + support epoch expansion from latest in some routes #2734 has been reviewed and merged
fix: do not build rug when targeting musl env #2735: the PR has been reviewed and merged
feat(client lib): add missing Dummy re-export #2737: the PR has been created, reviewed and merged
Implement a common aggregator client - Phase 1 #2640: the PR chore(client-lib): deprecate current aggregator client and related builder functions #2738 has been created and is pending review
Mithril signer should have a unique protocol initializer for an epoch #2424: the PR feat: use unique ProtocolInitializer per epoch in signer #2739 has been created and is pending review
We have also published the monthly report of September 2025

2025-10-10

Enhance STM library readability 1/2 #2568: the PR Enhance STM library readability - Golden tests #2642 is pending final review
Decentralization of configuration parameters - Phase 1 #2692: the PR Decentralization of configuration parameters phase 1 #2702 has been updated and is being reviewed. It will be merged shortly
Integrate the Haskell DMQ node in the infrastructure, e2e and documentation #2674: we have been able to run a full end to end tests with the DMQ node successfully. The draft PR feat: integrate real DMQ network in the devnet and e2e tests #2710 has been updated. The draft PR CIP-0137 | Fix protocol specifications #21 has been updated. The update of Pallas library is on the cardano-scaling:pallas:jpraynaud/fix-dmq-facade branch, and a PR will be created shortly
Provide Cardano database incremental snapshots needed for Amaru bootstrap #2704: the PR feat: add /artifact/cardano-database/epoch/{epoch} route + support epoch expansion from latest in some routes #2734 has been created and is pending review
fix: do not build rug when targeting musl env #2735: the PR has been created and is pending review
We have also checked that no test SPOs we operate needed to have KES keys rotation

2025-10-09

Enhance STM library readability #2568: the PR Enhance STM library readability - Golden tests #2642 is pending final review
Decentralization of configuration parameters - Phase 1 #2692: the PR Decentralization of configuration parameters phase 1 #2702 has is being updated
Integrate the Haskell DMQ node in the infrastructure, e2e and documentation #2674: we have fixed the messages diffusion problem on the p2p network. We are now investigating a problem in the n2c notification mini-protocol. The draft PR feat: integrate real DMQ network in the devnet and e2e tests #2710 has been updated. The draft PR CIP-0137 | Fix protocol specifications #21 is pending update. The update of Pallas library is on the cardano-scaling:pallas:jpraynaud/fix-dmq-facade branch, and a PR will be created once the full end to end test is working
Provide Cardano database incremental snapshots needed for Amaru bootstrap #2704: the developments have been pushed to the djo/2704/cdb-by-epoch-route branch
We have also worked with the Cardano consensus team on designing the process to snapshot a canonical ledger state to be snapshotted by Mithril

2025-10-08

Enhance STM library readability #2568: the draft PR Enhance STM library readability - Golden tests #2642 has been updated and is pending final review
Decentralization of configuration parameters - Phase 1 #2692: the PR Decentralization of configuration parameters phase 1 #2702 has been reviewed and is pending update
Integrate the Haskell DMQ node in the infrastructure, e2e and documentation #2674: we have kept investigating with the network team why we don't receive any notifications on the nodes. The draft PR feat: integrate real DMQ network in the devnet and e2e tests #2710 has been updated. The draft PR CIP-0137 | Fix protocol specifications #21 has been created. The update of Pallas library has been pushed to the cardano-scaling:pallas:jpraynaud/fix-dmq-facade branch
Provide Cardano database incremental snapshots needed for Amaru bootstrap #2704: the developments have been pushed to the djo/2704/cdb-by-epoch-route branch
DMQ integration tests are flaky in CI #2728: the fix PR fix: flakiness in DMQ integration tests in CI #2729 has been reviewed and merged. The issue is closed
Backward compatibility with latest release is broken #2730: the bug issue has been created and the fix PR Fix backward compatibilty issues #2731 has been created, reviewed and merged. The issue is closed

2025-10-07

Support multiple aggregation proof systems in STM library #2680: the PR feat: support multiple proof systems in STM #2689 has been reviewed and merged. The issue is closed
Enhance STM library readability #2568: the draft PR Enhance STM library readability - Golden tests #2642 has been updated and is pending final review
Decentralization of configuration parameters - Phase 1 #2692: the PR Decentralization of configuration parameters phase 1 #2702 has been updated and is pending review
Integrate the Haskell DMQ node in the infrastructure, e2e and documentation #2674: we have been able to publish a message on the DMQ network, and we are investigating why we don't receive any notifications on the nodes. The draft PR feat: integrate real DMQ network in the devnet and e2e tests #2710 has been updated. The draft PR CIP-0137 | Fix protocol specifications #21 has been created. The update of Pallas library has been pushed to the cardano-scaling:pallas:jpraynaud/fix-dmq-facade branch
Provide Cardano database incremental snapshots needed for Amaru bootstrap #2704: we have kept working on the issue and the developments have been pushed to the djo/2704/cdb-by-epoch-route branch
DMQ integration tests are flaky in CI #2728: the bug issue has been created and the fix PR fix: flakiness in DMQ integration tests in CI #2729 has been created and is pending review

2025-10-06

Support multiple aggregation proof systems in STM library #2680: the PR feat: support multiple proof systems in STM #2689 has been reviewed and is being updated
Enhance STM library readability #2568: the draft PR Enhance STM library readability - Golden tests #2642 is being completed and will be merged shortly
Decentralization of configuration parameters - Phase 1 #2692: the draft PR Decentralization of configuration parameters phase 1 #2702 has been updated and is pending review
Integrate the Haskell DMQ node in the infrastructure, e2e and documentation #2674: we are working on the final version of the message encoding. The draft PR feat: integrate real DMQ network in the devnet and e2e tests #2710 has been updated
Replace serde_yml unmaintained crate #2700: the PR refactor: replace unmaintained serde_yml dependency #2711 has been merged. The issue is closed
Provide Cardano database incremental snapshots needed for Amaru bootstrap #2704: we have kept working on the issue
Release 2542 distribution #2727: the issue has been created
Implement a simple aggregator discovery mechanism #2726: the issue has been created and groomed

2025-10-03

Support multiple aggregation proof systems in STM library #2680: the PR feat: support multiple proof systems in STM #2689 is pending review
Enhance STM library readability #2568: the draft PR Enhance STM library readability - Golden tests #2642 is being completed and will be merged shortly
Decentralization of configuration parameters - Phase 1 #2692: the draft PR Decentralization of configuration parameters phase 1 #2702 has been updated
Integrate the Haskell DMQ node in the infrastructure, e2e and documentation #2674: we have detected new discrepancy in the codec of the DMQ message in the Haskell node which are being fixed. The end to end test is now plugged on the DMQ network and there are minor refactoring that need to be done to support properly the DMQ network which is currently represented as a Cardano network. The draft PR feat: integrate real DMQ network in the devnet and e2e tests #2710 has been updated
Replace serde_yml unmaintained crate #2700: the PR refactor: replace unmaintained serde_yml dependency #2711 has been reviewed and is ready to be merged
Provide Cardano database incremental snapshots needed for Amaru bootstrap #2704: we have started to work on the issue
We have also checked if our test SPOs needed to have their KES keys rotated

2025-10-02

Support multiple aggregation proof systems in STM library #2680: the PR feat: support multiple proof systems in STM #2689 is pending review
Enhance STM library readability #2568: the draft PR Enhance STM library readability - Golden tests #2642 is being completed
Decentralization of configuration parameters - Phase 1 #2692: the draft PR Decentralization of configuration parameters phase 1 #2702 has been updated
Integrate the Haskell DMQ node in the infrastructure, e2e and documentation #2674: we have managed to fix the problem with handshake for the n2c mini-protocols. We have also detected discrepancy in the codec of the DMQ message in the Haskell node and the CIP specification which are being fixed. The draft PR feat: integrate real DMQ network in the devnet and e2e tests #2710 has been updated with the integration of the e2e tests with the Haskell DMQ network
Replace serde_yml unmaintained crate #2700: the PR refactor: replace unmaintained serde_yml dependency #2711 has been created and is being reviewed
We have also prepared the sprint planning for the next iteration

2025-10-01

Support multiple aggregation proof systems in STM library #2680: the PR feat: support multiple proof systems in STM #2689 is pending review
Enhance STM library readability #2568: the draft PR Enhance STM library readability - Golden tests #2642 is pending update
Decentralization of configuration parameters - Phase 1 #2692: the draft PR Decentralization of configuration parameters phase 1 #2702 has been updated
Integrate the Haskell DMQ node in the infrastructure, e2e and documentation #2674: we are still investigating the in the connection to the DMQ node. The draft PR feat: integrate real DMQ network in the devnet and e2e tests #2710 will be updated shortly
Replace serde_yml unmaintained crate #2700: we have found a way to fix the problem with the missing serde support from the saphyr crate by manually implementing the conversion from Yaml data to serde_json Value. The developments have been pushed to the jpraynaud/2700-replace-serde-yml-dependency branch

September 2025

2025-09-30

Support multiple aggregation proof systems in STM library #2680: the PR feat: support multiple proof systems in STM #2689 is pending review
Enhance STM library readability #2568: the draft PR Enhance STM library readability - Golden tests #2642 is pending update
Decentralization of configuration parameters - Phase 1 #2692: the draft PR Decentralization of configuration parameters phase 1 #2702 has been updated
Integrate the Haskell DMQ node in the infrastructure, e2e and documentation #2674: we have activated the tracing for the new n2c mini protocols of the DMQ node, but we don't have any communication traceavailable yet except the handshake when it fails. We will keep investigating the problem. We have also created the draft PR feat: integrate real DMQ network in the devnet and e2e tests #2710
Replace serde_yml unmaintained crate #2700: we have kept working on the issue with the saphyr library which does not provide serde support. The developments have been pushed to the jpraynaud/2700-replace-serde-yml-dependency branch
Stabilize Cardano DB v2 client CLI/library - Phase 3 #2701: the PR Make cardano-db backend v2 as default #2706 has been reviewed and . The issue is closed

2025-09-29

Support multiple aggregation proof systems in STM library #2680: the PR feat: support multiple proof systems in STM #2689 is being updated
Enhance STM library readability #2568: the draft PR Enhance STM library readability - Golden tests #2642 is pending update
Decentralization of configuration parameters - Phase 1 #2692: the draft PR Decentralization of configuration parameters phase 1 #2702 has been updated
Integrate the Haskell DMQ node in the infrastructure, e2e and documentation #2674: we have worked with the networking team to connect to the socket file of the DMQ node in a test environment. We are able to connect to a DMQ node, but we are not able to publish a message yet and we are investigating the problem
Replace serde_yml unmaintained crate #2700: we have kept working on the issue and we have identified a difficulty with the saphyr library as it does not provide serde support. We are investigating the problem. The developments have been pushed to the jpraynaud/2700-replace-serde-yml-dependency branch
Stabilize Cardano DB v2 client CLI/library - Phase 3 #2701: we have started to work on the issue and we have created the PR Make cardano-db backend v2 as default #2706 which is almost ready for review
Provide Cardano database incremental snapshots needed for Amaru bootstrap #2704: we have groomed the issue

2025-09-26

Support multiple aggregation proof systems in STM library #2680: the PR feat: support multiple proof systems in STM #2689 is being reviewed
Enhance STM library readability #2568: the draft PR Enhance STM library readability - Golden tests #2642 is pending update
Decentralization of configuration parameters - Phase 1 #2692: the draft PR Decentralization of configuration parameters phase 1 #2702 has been updated
Integrate the Haskell DMQ node in the infrastructure, e2e and documentation #2674: we have started a local network of 3 DMQ nodes which are connecting to each other, but none of them is opening a local socket file to communicate with. We will keep implemeting the DMQ nodes in the Mithril devnet
Replace serde_yml unmaintained crate #2700: we have started to work on the issue and the developments have been pushed to the jpraynaud/2700-replace-serde-yml-dependency branch
We have also made sure that none of our test SPOs needed to have their KES keys rotated

2025-09-25

Support multiple aggregation proof systems in STM library #2680: the PR feat: support multiple proof systems in STM #2689 is being reviewed
Enhance STM library readability #2568: the draft PR Enhance STM library readability - Golden tests #2642 is pending update
Decentralization of configuration parameters - Phase 1 #2692: the draft PR Decentralization of configuration parameters phase 1 #2702
Integrate the Haskell DMQ node in the infrastructure, e2e and documentation #2674: we have started to work on the issue
Enhance protocol security page on website #2703: the issue has been created and groomed
Provide Cardano database incremental snapshots needed for Amaru bootstrap #2704: the issue has been created and needs to be groomed

2025-09-24

Update the DMQ message structure #2670: the PR refactor(network): update DMQ message #696 has been reviewed and merged. The PR refactor: update DMQ message structure #2672 has been updated and merged. The issue is closed
Update the n2c Local Message Notification mini-protocol in DMQ #2673: the modifications have been handled in the PRs of the issue Update the DMQ message structure #2670. The issue is closed
Enhance STM library readability #2568: the draft PR Enhance STM library readability - Golden tests #2642 is pending update
Support multiple aggregation proof systems in STM library #2680: the PR feat: support multiple proof systems in STM #2689 is being reviewed
Decentralization of configuration parameters - Phase 1 #2692: we have started to work on the issue and the developments have been pushed to the ctl/2692-decentralization-of-configuration-parameters-phase-1 branch
We have also presented the September monthly demo

2025-09-19

Update the DMQ message structure #2670: the PR CIP-0137 | Fix protocol specifications #1085 has been reviewed and merged. The PR refactor(network): update DMQ message #696 is pending review. The draft PR refactor: update DMQ message structure #2672 will be merged once the changes on the pallas repository have been merged
Update the n2c Local Message Notification mini-protocol in DMQ #2673: the modifications have been handled in the PRs of the issue Update the DMQ message structure #2670
Enhance STM library readability #2568: the draft PR Enhance STM library readability - Golden tests #2642 is pending update
Support multiple aggregation proof systems in STM library #2680: the PR feat: support multiple proof systems in STM #2689 is pending review
Decentralization of configuration parameters - Phase 0 #2691: the PR phase 0 : prepare decentralization parameters #2694 has been merged. The issue is closed
Replace serde_yml unmaintained crate #2700: the issue has been created and groomed
Stabilize Cardano DB v2 client CLI/library - Phase 3 #2701: the issue has been created and groomed
We have also prepared the next monthly demo path
Additionally, we have rotated the KES keys of the test SPO we operate on the release-preprod network

2025-09-18

Update the DMQ message structure #2670: the PR CIP-0137 | Fix protocol specifications #1085 has been reviewed and merged. The PR refactor(network): update DMQ message #696 is pending review. The draft PR refactor: update DMQ message structure #2672 will be merged once the changes on the pallas repository have been merged
Update the n2c Local Message Notification mini-protocol in DMQ #2673: the modifications have been handled in the PRs of the issue Update the DMQ message structure #2670
Prototype Mithril/Cardano bundle in Docker image #2616: we have finalized the developments on the ctl/2616-prototype-mithril-cardano-bundle-in-docker branch. The issue is closed
Enhance STM library readability #2568: the draft PR Enhance STM library readability - Golden tests #2642 is pending update
Support multiple aggregation proof systems in STM library #2680: the PR feat: support multiple proof systems in STM #2689 has been updated and is pending review
Decentralization of configuration parameters - Phase 0 #2691: the PR phase 0 : prepare decentralization parameters #2694 has been updated and reviewed. It will be merged shortly
fix: Rust 1.90 clippy warnings #2699: the PR has been created, reviewed and merged
fix: doctests using deprecated functions in STM #2698: the PR has been created, reviewed and merged
We have also prepared the sprint planning for the next iteration

2025-09-17

Update the DMQ message structure #2670: the PR CIP-0137 | Fix protocol specifications #1085 has been reviewed and merged. The PR refactor(network): update DMQ message #696 is pending review. The draft PR refactor: update DMQ message structure #2672 will be merged once the changes on the pallas repository have been merged
Update the n2c Local Message Notification mini-protocol in DMQ #2673: the modifications have been handled in the PRs of the issue Update the DMQ message structure #2670
Release 2537 distribution #2625: we have released the 2537.0 distribution which has been deployed on the release-mainnet and release-preprod networks
Prototype Mithril/Cardano bundle in Docker image #2616: we have paired on the issue and we have been able to seamlessly start the Mithril signer (in the naive deployment model) when starting the Cardano node 🎉. The developments have been pushed to the ctl/2616-prototype-mithril-cardano-bundle-in-docker branch
Enhance STM library readability #2568: the draft PR Enhance STM library readability - Golden tests #2642 is pending update
Support multiple aggregation proof systems in STM library #2680: the draft PR feat: support multiple proof systems in STM #2689 has been updated.
Decentralization of configuration parameters - Phase 0 #2691: the draft PR phase 0 : prepare decentralization parameters #2694 has been updated

2025-09-16

Update the DMQ message structure #2670: the PR CIP-0137 | Fix protocol specifications #1085 is pending review. The PR refactor(network): update DMQ message #696 is pending review. The draft PR refactor: update DMQ message structure #2672 will be merged once the changes on the pallas repository have been merged
Update the n2c Local Message Notification mini-protocol in DMQ #2673: the modifications have been handled in the PRs of the issue Update the DMQ message structure #2670
Release 2537 distribution #2625: we are monitoring the pre-release-preview and we expect to release the distribution this week
Prototype Mithril/Cardano bundle in Docker image #2616: we have paired on the issue and worked on the seamless configuration of the Mithril signer in the naive deployment model. The developments have been pushed to the ctl/2616-prototype-mithril-cardano-bundle-in-docker branch
Enhance STM library readability #2568: the draft PR Enhance STM library readability - Golden tests #2642 is being updated
Support multiple aggregation proof systems in STM library #2680: the draft PR feat: support multiple proof systems in STM #2689 has been updated.
Decentralization of configuration parameters - Phase 0 #2691: the draft PR phase 0 : prepare decentralization parameters #2694 has been created
fix: docker client command in documentation #2695: the PR has been created, reviewed and merged

2025-09-15

Update the DMQ message structure #2670: the PR CIP-0137 | Fix protocol specifications #1085 has been slightly updated following some review comments and is pending review. The PR refactor(network): update DMQ message #696 is pending review. The draft PR refactor: update DMQ message structure #2672 will be merged once the changes on the pallas repository have been merged
Update the n2c Local Message Notification mini-protocol in DMQ #2673: the modifications have been handled in the PRs of the issue Update the DMQ message structure #2670
Release 2537 distribution #2625: we are monitoring the pre-release-preview and we expect to release the distribution this week
Prototype Mithril/Cardano bundle in Docker image #2616: we have paired on the issue and updated the entry point of the Docker image to start a Mithril signer in the background. The developments are available at the ctl/2616-prototype-mithril-cardano-bundle-in-docker branch
Enhance STM library readability #2568: the draft PR Enhance STM library readability - Golden tests #2642 is being updated
Support multiple aggregation proof systems in STM library #2680: the draft PR feat: support multiple proof systems in STM #2689 has been updated. We have removed the test dependency to 'bincode' which is not required as this is not the correct way of (de)serializing (using the to_bytes/from_bytes is preferred)
Decentralization of configuration parameters - Phase 0 #2691: we have kept working on the issue and the developments have been pushed to the ctl/2691-prepare-decentralization-parameters branch

2025-09-12

Update the DMQ message structure #2670: the PR CIP-0137 | Fix protocol specifications #1085 is pending review. The PR refactor(network): update DMQ message #696 is pending review. The draft PR refactor: update DMQ message structure #2672 will be merged once the changes on the pallas repository have been merged
Update the n2c Local Message Notification mini-protocol in DMQ #2673: the modifications have been handled in the PRs of the issue Update the DMQ message structure #2670
Release 2537 distribution #2625: we are monitoring the pre-release-preview and we expect to release the distribution early next week
Prototype Mithril/Cardano bundle in Docker image #2616: the developments are available at the ctl/2616-prototype-mithril-cardano-bundle-in-docker branch
Enhance STM library readability #2568: the draft PR Enhance STM library readability - Golden tests #2642 is being updated
Support multiple aggregation proof systems in STM library #2680: the draft PR feat: support multiple proof systems in STM #2689 has been created
Decentralization of configuration parameters - Phase 0 #2691: the issue has been created and groomed. We have also started to work on it and the developments have been pushed to the ctl/2691-prepare-decentralization-parameters branch
Decentralization of configuration parameters - Phase 1 #2692: the issue has been created and groomed
Decentralization of configuration parameters - Phase 2 #2693: the issue has been created and groomed
We have also updated the KES keys of the SPOs we operate on the testing-preview and pre-release-preview networks

2025-09-11

Flakiness in e2e tests in CI #2687: the PR [fix: flakiness in e2e tests in the CI #2688](fix: flakiness in e2e tests in the CI #2688) has been reviewed and merged. The issue is closed
Update the DMQ message structure #2670: the PR CIP-0137 | Fix protocol specifications #1085 is pending review. The PR refactor(network): update DMQ message #696 is pending review. The draft PR refactor: update DMQ message structure #2672 will be merged once the changes on the pallas repository have been merged
Update the n2c Local Message Notification mini-protocol in DMQ #2673: the modifications have been handled in the PRs of the issue Update the DMQ message structure #2670
Release 2537 distribution #2625: we have we have created the pre-release for the distribution 2537.0-pre. We expect to release the distribution early next week
Prototype Mithril/Cardano bundle in Docker image #2616: the developments have been pushed to the ctl/2616-prototype-mithril-cardano-bundle-in-docker branch
Enhance STM library readability #2568: the draft PR Enhance STM library readability - Golden tests #2642 is being updated
Add verification of a tampered Cardano database in the CI #2678: the PR Execute cardano database v2 command verify on a invalid dat… #2685 has been merged. The issue is closed
Support multiple aggregation proof systems in STM library #2680: we have started to work on the issue and the developments have been pushed to the jpraynaud/2680-stm-multiple-proof-system branch
We have also worked on the design of the decentralization of the configuration parameters of the protocol

2025-09-10

Flakiness in e2e tests in CI #2687: the bug issue has been created. The problem has been identified and fixed in the PR [fix: flakiness in e2e tests in the CI #2688](fix: flakiness in e2e tests in the CI #2688) which is pending review
Update the DMQ message structure #2670: the PR CIP-0137 | Fix protocol specifications #1085 is pending review. The PR refactor(network): update DMQ message #696 is pending review. The draft PR refactor: update DMQ message structure #2672 will be merged once the changes on the pallas repository have been merged
Update the n2c Local Message Notification mini-protocol in DMQ #2673: the modifications have been handled in the PRs of the issue Update the DMQ message structure #2670
Release 2537 distribution #2625: we have kept preparing the pre-release of the distribution
Prototype Mithril/Cardano bundle in Docker image #2616: the developments have been pushed to the ctl/2616-prototype-mithril-cardano-bundle-in-docker branch
Enhance STM library readability #2568: the draft PR Enhance STM library readability - Golden tests #2642 is being updated
Add verification of a tampered Cardano database in the CI #2678: we have started to work on the issue and the draft PR Execute cardano database v2 command verify on a invalid dat… #2685 has been reviewed and is ready to be merged

2025-09-09

Update the DMQ message structure #2670: the PR CIP-0137 | Fix protocol specifications #1085 has been created on the CIP repository and is pending review. The PR refactor(network): update DMQ message #696 is pending review. The draft PR refactor: update DMQ message structure #2672 has been reviewed and will be merged once the changes on the pallas repository have been merged
Update the n2c Local Message Notification mini-protocol in DMQ #2673: the modifications have been handled in the PRs of the issue Update the DMQ message structure #2670
Release 2537 distribution #2625: the PR chore: bump STM minor to 0.5.0 #2684 has been created, reviewed and merged. We have kept preparing the pre-release of the distribution
Prototype Mithril/Cardano bundle in Docker image #2616: the developments have been pushed to the ctl/2616-prototype-mithril-cardano-bundle-in-docker branch
Enhance STM library readability #2568: the draft PR Enhance STM library readability - Golden tests #2642 is being updated
Add verification of a tampered Cardano database in the CI #2678: we have started to work on the issue and the draft PR Execute cardano database v2 command verify on a invalid dat… #2685 has been created

2025-09-08

Update the DMQ message structure #2670: the draft PR CIP-0137 | Fix messages specification has been updated and reviewed by the networking team. We will move it to the Cardano Foundation CIP repository for review by the community. The modifications for the pallas library have been pushed to the PR refactor(network): update DMQ message #696. The draft PR refactor: update DMQ message structure #2672 is pending review
Update the n2c Local Message Notification mini-protocol in DMQ #2673: the modifications have been handled in the PRs of the issue Update the DMQ message structure #2670
Release 2537 distribution #2625: the PR feat: stable tools utxo-hd commands in client CLI #2681 has been created, reviewed and merged
Prototype Mithril/Cardano bundle in Docker image #2616: we have resumed our work on the issue and the developments have been pushed to the ctl/2616-prototype-mithril-cardano-bundle-in-docker branch
Enhance STM library readability #2568: the draft PR Enhance STM library readability - Golden tests #2642 is being updated
Support multiple aggregation proof systems in STM library #2680: the issue has been created and groomed
Add verification of a tampered Cardano database in the CI #2678: the issue has been created and groomed
Add fast bootstrap of Cardano node with LMDB UTxO-HD verification in CI #2679: the issue has been created and groomed
We have created the August monthly report on the Cardano Scaling website

2025-09-04

Update the DMQ message structure #2670: the draft PR CIP-0137 | Fix messages specification has been updated and is pending review. Once reviewed by the networking team, it will be moved to the Cardano Foundation CIP repository for review by the community. The modifications for the pallas library have been pushed to the jpraynaud/update-dmq-message branch. The draft PR refactor: update DMQ message structure #2672 has also been updated and is pending review
Update the n2c Local Message Notification mini-protocol in DMQ #2673: the modifications have been handled in the PRs of the issue Update the DMQ message structure #2670
Release 2537 distribution #2625: we have resumed our work on this issue. The PRs chore: update SSH keys #2675 is pending merge. The PR Chore: update dependencies for distribution 2537 #2677 has been reviewed and merged
Prototype Mithril/Cardano bundle in Docker image #2616: we have resumed our work on the issue and the developments have been pushed to the ctl/2616-prototype-mithril-cardano-bundle-in-docker branch
Enhance STM library readability #2568: the draft PR Enhance STM library readability - Golden tests #2642 is being updated
We have kept working the SNARK experimentation by the innovation team for the Mithril certificates to define a plan to implement the modifications required to make the STM library SNARK friendly
We have also checked if some of our test SPOs needed to have KES keys rotated

2025-09-03

List the invalid/missing immutable files in the verify command in client CLI #2618: the PR refactor: listing of invalid or missing immutable files in verify command #2671 has been reviewed and merged. The issue is closed
Update the DMQ message structure #2670: the draft PR CIP-0137 | Fix messages specification has been updated. Once ready, it will be moved to the Cardano Foundation CIP repository for review by the community. The modifications for the pallas library have been pushed to the jpraynaud/update-dmq-message branch. The draft PR refactor: update DMQ message structure #2672 has also been updated
Update the n2c Local Message Notification mini-protocol in DMQ #2673: we have kept working on the issue
Release 2537 distribution #2625: we have resumed our work on this issue. The PRs chore: update SSH keys #2675 is pending review. The PR chore: rollback binary encoding for single signature #2676 have been reviewed and merged. The PR Chore: update dependencies for distribution 2537 #2677 has been created and is pending review
Enhance STM library readability #2568: the draft PR Enhance STM library readability - Golden tests #2642 is being updated
We have kept working the SNARK experimentation by the innovation team for the Mithril certificates to define a plan to implement the modifications required to make the STM library SNARK friendly
We have also prepared the sprint planning for the next iteration

2025-09-03

List the invalid/missing immutable files in the verify command in client CLI #2618: the draft PR refactor: listing of invalid or missing immutable files in verify command #2671 has been updated and it will be ready for review shortly
Update the DMQ message structure #2670: the draft PR CIP-0137 | Fix messages specification has been updated and is being reviewed by the networking team. Once ready, it will be moved to the Cardano Foundation CIP repository for review by the community. The modifications for the pallas library have been pushed to the jpraynaud/update-dmq-message branch. The draft PR refactor: update DMQ message structure #2672 has also been updated
Update the n2c Local Message Notification mini-protocol in DMQ #2673: the issue has been created and groomed, and we have started to work on it
Release 2537 distribution #2625: we have resumed our work on this issue. The PRs chore: update SSH keys #2675 and chore: rollback binary encoding for single signature #2676 have been created and are pending review
Enhance STM library readability #2568: the draft PR Enhance STM library readability - Golden tests #2642 is being updated
We have also kept reviewing the SNARK experimentation by the innovation team for the Mithril certificates

2025-09-02

List the invalid/missing immutable files in the verify command in client CLI #2618: the PR List invalid or tampered immutable files in verify command #2637 has been reviewed and merged. We have worked on the new draft PR refactor: listing of invalid or missing immutable files in verify command #2671 to slightly refactor the client API interface which was not completely satisfactory
Update the DMQ message structure #2670: the draft PR CIP-0137 | Fix messages specification has been updated and is being reviewed by the networking team. Once ready, it will be moved to the Cardano Foundation CIP repository for review by the community. The modifications for the pallas library have been pushed to the jpraynaud/update-dmq-message branch. The draft PR refactor: update DMQ message structure #2672 has also been created
Enhance STM library readability #2568: the draft PR Enhance STM library readability - Golden tests #2642 is being updated
We have also kept reviewing the SNARK experimentation by the innovation team for the Mithril certificates

2025-09-01

List the invalid/missing immutable files in the verify command in client CLI #2618: the PR List invalid or tampered immutable files in verify command #2637 has been updated and it will be ready to be merged shortly. We will address a small refactoring to make the proving part of the code more readable in a new PR
Enhance STM library readability #2568: the draft PR Enhance STM library readability - Golden tests #2642 is being updated
Update the DMQ message structure #2670: the draft PR CIP-0137 | Fix messages specification has been created and is being reviewed by the networking team. Once ready, it will be moved to the Cardano Foundation CIP repository for review by the community
The testing-preview network has resumed producing certificates following the re-genesis
We have also kept reviewing the SNARK experimentation by the innovation team for the Mithril certificates

August 2025

2025-08-29

Implement a fake DMQ node with Mithril relay #2627: the PR feat: implement fake DMQ node #2635 has been reviewed and merged. The issue is closed
List the invalid/missing immutable files in the verify command in client CLI #2618: the PR List invalid or tampered immutable files in verify command #2637 is pending update
Enhance STM library readability #2568: the draft PR Enhance STM library readability - Golden tests #2642 is being updated
Update the DMQ message structure #2670: we have kept working on the issue
We have noticed that the testing-preview network was not producing any certificate since the beginning of the epoch 1039. After investigation, we have found out that a SPO with 23M ADA (90% of the stake on the network) had briefly joined the network for few epochs and stopped signing since epoch 1039. This means that the quorum can't be reached with the protocol parameters we run on this network. We will have to regenesis the network at epoch 1090 so that it resumes creating certificates at epoch 1091
We have also kept reviewing the SNARK experimentation by the innovation team for the Mithril certificates
Finally, we have made sure that the KES keys of the test SPOs we run did not need to have their KES keys rotated

2025-08-28

Implement a fake DMQ node with Mithril relay #2627: we have kept working on the issue and the PR feat: implement fake DMQ node #2635 which is pending review. We have in particular fixed the flakiness in the tests that we had spotted previously. The PR will be merged shortly
List the invalid/missing immutable files in the verify command in client CLI #2618: the PR List invalid or tampered immutable files in verify command #2637 is pending update
Enhance STM library readability #2568: the draft PR Enhance STM library readability - Golden tests #2642 has been updated
Update the DMQ message structure #2670: we have started to work on the issue
We have also kept reviewing the SNARK experimentation by the innovation team for the Mithril certificates

2025-08-27

Implement a fake DMQ node with Mithril relay #2627: we have kept working on the issue and the PR feat: implement fake DMQ node #2635 which has been updated and we are still investigating some flakiness
List the invalid/missing immutable files in the verify command in client CLI #2618: the PR List invalid or tampered immutable files in verify command #2637 is pending update
Enhance STM library readability #2568: the draft PR Enhance STM library readability - Golden tests #2642 is pending update
Update the DMQ message structure #2670: the issue has been created and groomed
We have kept reviewing the SNARK experimentation by the innovation team for the Mithril certificates
We have also attended an ecosystem meeting about the Canonical Ledger State
Finally, we have presented the August monthly demo

2025-08-26

Implement a fake DMQ node with Mithril relay #2627: we have kept working on the issue and the PR feat: implement fake DMQ node #2635 will is almost ready for review
Remove Operational Certificate circular dependency in KES signature #2668: the PR fix: Operational Certificate circular dependency in KES signature #2669 has been reviewed and merged. The issue is closed
List the invalid/missing immutable files in the verify command in client CLI #2618: the PR List invalid or tampered immutable files in verify command #2637 is pending update
Enhance STM library readability #2568: the draft PR Enhance STM library readability - Golden tests #2642 is pending update
Update the DMQ message structure #2670: the issue has been created and groomed
We have also kept preparing the next monthly demo

2025-08-25

Implement a fake DMQ node with Mithril relay #2627: we have kept working on the issue and the PR feat: implement fake DMQ node #2635 will be ready for review shortly
Remove Operational Certificate circular dependency in KES signature #2668: the issue has been created and groomed. The PR fix: Operational Certificate circular dependency in KES signature #2669 has been created and is pending review. It will be merged shortly and it will unlock the final review for the PR feat: implement fake DMQ node #2635
List the invalid/missing immutable files in the verify command in client CLI #2618: the PR List invalid or tampered immutable files in verify command #2637 is pending update
Enhance STM library readability #2568: the draft PR Enhance STM library readability - Golden tests #2642 is pending update
We have kept preparing the next monthly demo

2025-08-22

Implement a fake DMQ node with Mithril relay #2627: we have kept working on the issue and the draft PR feat: implement fake DMQ node #2635 which has been updated. We have finally achieved the run of a full e2e test with the signature diffusion through the fake DMQ network 🎉
List the invalid/missing immutable files in the verify command in client CLI #2618: the PR List invalid or tampered immutable files in verify command #2637 is pending update
Enhance STM library readability #2568: the draft PR Enhance STM library readability - Golden tests #2642 is pending update
We have started to prepare the next monthly demo
We have also made sure that no test SPO we operate needed to have their KES keys rotated

2025-08-21

Implement a fake DMQ node with Mithril relay #2627: we have kept working on the issue and the draft PR feat: implement fake DMQ node #2635 which has been updated. We have added integration tests that characterized the communication issue between consumer client and server which occurs when a client is disconnected and tries to reconnect. We have added the same lost connection tests for the publisher client and server (they did not require modifications to work). We will keep stabilizing the e2e test
List the invalid/missing immutable files in the verify command in client CLI #2618: the PR List invalid or tampered immutable files in verify command #2637 is pending update
Enhance STM library readability #2568: the draft PR Enhance STM library readability - Golden tests #2642 is pending update
We have discussed about implementing the Mithril signer in the Amaru node and about what is missing on both sides to make it work
We have also prepared the sprint planning of the next iteration

2025-08-20

Upgrade to Cardano 10.5 #2623: We have fixed the problem with the deployment on the testing-preview network where the block producers stopped creating new immutable files after updating to 10.5.1. The PR fix: block producer infrastructure configuration #2667 has been created, reviewed and merged. The issue is closed
Implement a fake DMQ node with Mithril relay #2627: we have kept working on the issue and the draft PR feat: implement fake DMQ node #2635 which has been updated. We have added integration tests that characterized a problem which prevented the notification of messages multiple times. We have noticed that problems still occur in the e2e test where a communication issue between consumer client and server occurs after the aggregator is restarted. We will keep stabilizing the e2e test
List the invalid/missing immutable files in the verify command in client CLI #2618: the PR List invalid or tampered immutable files in verify command #2637 is pending update
Enhance STM library readability #2568: the draft PR Enhance STM library readability - Golden tests #2642 is being updated

2025-08-19

Upgrade to Cardano 10.5 #2623: We have noticed a problem with the deployment on the testing-preview network where the block producers stopped creating new immutable files after updating to 10.5.1. We are investigating the source of the problem and we have reopened the issue
Implement a fake DMQ node with Mithril relay #2627: we have kept working on the issue and the draft PR feat: implement fake DMQ node #2635 has been updated. We are fixing the implementation of the notification server/client which does work only for the first message received
List the invalid/missing immutable files in the verify command in client CLI #2618: the PR List invalid or tampered immutable files in verify command #2637 is pending review
Remove features test_tools and full from mithril-client #2662: the PR chore: add dev adr for guidelines on writting test utilities + remove test_tools and full features from mithril-common #2653 has been updated, reviewed and merged. The issue is closed
Enhance STM library readability #2568: the draft PR Enhance STM library readability - Golden tests #2642 is being updated

2025-08-18

Upgrade to Cardano 10.5 #2623: the PR feat: support Cardano node 10.5 #2664 has been reviewed and merged. The Cardano node 10.5.1 has been deployed to all the test/dev networks. The issue is closed
Implement a fake DMQ node with Mithril relay #2627: we have kept working on the issue and the draft PR feat: implement fake DMQ node #2635 has been updated. We are stabilizing the notification server/client implementation in the e2e test
List the invalid/missing immutable files in the verify command in client CLI #2618: the PR List invalid or tampered immutable files in verify command #2637 is pending review
Remove features test_tools and full from mithril-client #2662: the PR chore: add dev adr for guidelines on writting test utilities + remove test_tools and full features from mithril-common #2653 is pending review
Enhance STM library readability #2568: the draft PR Enhance STM library readability - Golden tests #2642 is being updated

2025-08-07

Upgrade to Cardano 10.5 #2623: the PR feat: support Cardano node 10.5 #2664 has been updated and reviewed, it will be merged shortly
Implement a fake DMQ node with Mithril relay #2627: we have resumed the work on the issue and the draft PR feat: implement fake DMQ node #2635 has been updated. We have noticed some difficulties in the computation of the KES signature that relies on the operational certificate for legacy reasons and that needs to be updated
List the invalid/missing immutable files in the verify command in client CLI #2618: the PR List invalid or tampered immutable files in verify command #2637 is pending review
Remove features test_tools and full from mithril-client #2662: the PR chore: add dev adr for guidelines on writting test utilities + remove test_tools and full features from mithril-common #2653 is pending review
Enhance STM library readability #2568: the draft PR Enhance STM library readability - Golden tests #2642 is being updated
chore: update nightly workflow schedule #2663: the PR has been reviewed and merged
fix: Rust 1.89 clippy warnings #2665: the PR has been created, reviewed and merged
We have also made sure that no test SPO we operate needed to have their KES keys rotated

2025-08-06

Upgrade to Cardano 10.5 #2623: we have worked on the issue and the PR feat: support Cardano node 10.5 #2664 has been created and is pending review
Implement a fake DMQ node with Mithril relay #2627: we will resume the work on this issue shortly
List the invalid/missing immutable files in the verify command in client CLI #2618: the PR List invalid or tampered immutable files in verify command #2637 is pending review
Remove features test_tools and full from mithril-client #2662: the PR chore: add dev adr for guidelines on writting test utilities + remove test_tools and full features from mithril-common #2653 is pending review
Enhance STM library readability #2568: the draft PR Enhance STM library readability - Golden tests #2642 is being updated
chore: update nightly workflow schedule #2663: the PR has been created and is pending review

July 2025

2025-07-31

Implement a common aggregator client #2640: a first PR, add shared aggregator client #2661, have been created, reviewed, and merged

2025-07-30

Implement a common aggregator client #2640: we have keep working on the issue
fix: add write access check for install path in one-line installer #2660: the PR have been created, reviewed and merged

2025-07-29

Document that immutable folder discovery is recursive #2621: the PR Document immutables folder discovery is recursive #2656 have been reviewed and merged. The issue is closed but some work is remaining and was split to Document immutables folder discovery is recursive (part2)#2657
Enhance backward compatibility workflow #2093: the PR ci: add support for testing a specific release in Backward compatibility workflow #2658 have been created, reviewed and merged. The issue is closed
Add one line installer Docker images sections in release note #2638: the PR fix: restore missing section in unstable release notes #2659 has been reviewed and merged.
Implement a common aggregator client #2640: we have started to work on the issue

2025-07-28

Convert from to try_from for Certificate and CertificateRecord #2651: the PR refactor: use TryFrom for Certificate and CertificateRecord conversions #2652 have been reviewed and merged. The issue is closed
Document that immutable folder discovery is recursive #2621: the draft PR Document immutables folder discovery is recursive #2656 have been created
Prototype Mithril/Cardano bundle in Docker image #2616: we have kept investigating the available options for creating a composite Docker image and a state of the investigation was written

2025-07-25

Refactor test_utils module in mithril-common crate #2580: the PR refactor: common test utils #2650 have been reviewed and merged
Convert from to try_from for Certificate and CertificateRecord #2651: the PR refactor: use TryFrom for Certificate and CertificateRecord conversions #2652 have been created and is waiting for reviews. The issue is closed
Document that immutable folder discovery is recursive #2621: work on the issue have started

2025-07-24

List the invalid/missing immutable files in the verify command in client CLI #2618: the PR List invalid or tampered immutable files in verify command #2637 modification path have been proposed to address the remaining PR comments
Replace serde_yaml unmaintained crate #2639: the PR chore: replace serde_yaml with serde_yml #2649 have been merged
Refactor test_utils module in mithril-common crate #2580: the PR refactor: common test utils #2650 have been created and is waiting for reviews

2025-07-23

List the invalid/missing immutable files in the verify command in client CLI #2618: the PR List invalid or tampered immutable files in verify command #2637 has been updated following reviews
Replace serde_yaml unmaintained crate #2639: the PR chore: replace serde_yaml with serde_yml #2649 have been created and reviewed
Refactor test_utils module in mithril-common crate #2580: we have kept working on the issue

2025-07-22

Upgrade to Cardano 10.5 #2623: we will resume working on the issue once the 10.5.0 version is released
Implement a fake DMQ node with Mithril relay #2627: the draft PR feat: implement fake DMQ node #2635 has been updated
Enhance STM library readability #2568: the draft PR Enhance STM library readability - Golden tests #2642 is being updated
List the invalid/missing immutable files in the verify command in client CLI #2618: the PR List invalid or tampered immutable files in verify command #2637 has been updated and is being reviewed
Release 2530 distribution #2625: we have kept working on the issue
Refactor test_utils module in mithril-common crate #2580: the PR refactor: rethink dummies test doubles #2647 has been created, reviewed and merged
Add one line installer Docker images sections in release note #2638: the PR ci: add extra information to release notes #2646 has been reviewed and merged. The issue is closed

2025-07-21

Upgrade to Cardano 10.5 #2623: we will resume working on the issue once the 10.5.0 version is released
Implement a fake DMQ node with Mithril relay #2627: the draft PR feat: implement fake DMQ node #2635 has been updated
Enhance STM library readability #2568: the draft PR Enhance STM library readability - Golden tests #2642 is being updated
List the invalid/missing immutable files in the verify command in client CLI #2618: the PR List invalid or tampered immutable files in verify command #2637 has been updated
Release 2530 distribution #2625: we have kept working on the issue
Prototype Mithril/Cardano bundle in Docker image #2616: we have kept investigating the available options for creating a composite Docker image
Refactor test_utils module in mithril-common crate #2580: we have kept working on the issue
Add one line installer Docker images sections in release note #2638: the PR ci: add extra information to release notes #2646 has been created and is pending review

2025-07-18

Upgrade to Cardano 10.5 #2623: we will resume working on the issue once the 10.5.0 version is released
Implement a fake DMQ node with Mithril relay #2627: the draft PR feat: implement fake DMQ node #2635 has been updated
Enhance STM library readability #2568: the draft PR Enhance STM library readability - Golden tests #2642 is being updated
List the invalid/missing immutable files in the verify command in client CLI #2618: the PR List invalid or tampered immutable files in verify command #2637 has been updated
Release 2530 distribution #2625: we have kept working on the issue
Prototype Mithril/Cardano bundle in Docker image #2616: we have kept investigating the available options for creating a composite Docker image
Refactor test_utils module in mithril-common crate #2580: we have kept working on the issue
Add one line installer Docker images sections in release note #2638: we have kept working on the issue
We have also made sure that none of the test SPOs we operate needed their KES keys rotated

2025-07-17

Upgrade to Cardano 10.5 #2623: we will resume working on the issue once the 10.5.0 version is released
Implement a fake DMQ node with Mithril relay #2627: the draft PR feat: implement fake DMQ node #2635 has been updated
Enhance STM library readability #2568: the draft PR Enhance STM library readability - Golden tests #2642 has been created
List the invalid/missing immutable files in the verify command in client CLI #2618: the PR List invalid or tampered immutable files in verify command #2637 has been updated
Refactor CardanoNetwork entity #2590: the PR refactor: unify and extend CardanoNetwork implementation #2643 has been merged. The issue is closed
Release 2530 distribution #2625: the PR Chore: update dependencies for distribution 2530 #2644 has been created, reviewed and merged
Prototype Mithril/Cardano bundle in Docker image #2616: we have kept investigating the available options for creating a composite Docker image
Refactor test_utils module in mithril-common crate #2580: we have started to work on the issue
Add one line installer Docker images sections in release note #2638: we have started to work on the issue

2025-07-16

Upgrade to Cardano 10.5 #2623: we will resume working on the issue once the 10.5.0 version is released
Implement a fake DMQ node with Mithril relay #2627: the draft PR feat: implement fake DMQ node #2635 has been updated. The PR fix(dmq): add missing KES period in 'DmqMsg' #2636 has been merged
Enhance STM library readability #2568: the draft PR Enhance STM library readability - Golden tests #2642 has been created
List the invalid/missing immutable files in the verify command in client CLI #2618: the draft PR List invalid or tampered immutable files in verify command #2637 has been updated
Future-proof maintainability for the new website #2622: the PR make website more future-proof #2641 has been created, reviewed and merged. The issue is closed
Refactor CardanoNetwork entity #2590: the PR refactor: unify and extend CardanoNetwork implementation #2643 has been created and is pending review
Release 2529 distribution #2625: we have started to work on the issue
Prototype Mithril/Cardano bundle in Docker image #2616: we have started to work on the issue

2025-07-15

Synchronize certificate chain of follower aggregator #2534: the PR [feat: Add CertificateChainSynchronizer and make follower aggregators start their chain by synchronising with their leader #2634] has been merged. The issue is closed
Upgrade to Cardano 10.5 #2623: we will resume working on the issue once the 10.5.0 version is released. The developments have been pushed to the jpraynaud/2623-upgrade-cardano-node-10.5 branch
Implement a fake DMQ node with Mithril relay #2627: the draft PR feat: implement fake DMQ node #2635 has been updated. The PR fix(dmq): add missing KES period in 'DmqMsg' #2636 has been created and is being reviewed
Enhance STM library readability #2568: the PR Enhance STM library readability - Rename functions #2632 has been merged. We have kept working on the issue
List the invalid/missing immutable files in the verify command in client CLI #2618: the draft PR List invalid or tampered immutable files in verify command #2637 has been created
Future-proof maintainability for the new website #2622: we have worked on the issue and created an analysis of the modification done with the upgrade of the homepage design
Monthly report June 2025 #28: the PR has been merged
CIP-0137 | Fix mini-protocols and update implementation plan #1047: the PR has been merged
fix(network): add missing KES period in DMQ message #671: the PR has been merged
Add one line installer Docker images sections in release notes #2638: the issue has been created and groomed
Replace serde_yaml unmaintained crate #2639: the issue has been created and groomed
Implement a common aggregator client #2640: the issue has been created and groomed

2025-07-08

Synchronize certificate chain of follower aggregator #2534: the PR feat: Add CertificateChainSynchronizer and make follower aggregators start their chain by synchronising with their leader #2634 has been created and is pending review
Upgrade to Cardano 10.5 #2623: we will resume working on the issue once the 10.5.0 version is released. The developments have been pushed to the jpraynaud/2623-upgrade-cardano-node-10.5 branch
Implement a fake DMQ node with Mithril relay #2627: the draft PR feat: implement fake DMQ node #2635 has been created
Clients support Mithril era transition #2619: the PR feat: add support for Mithril era transition in clients #2633 has been merged. The issue is closed
Enhance STM library readability #2568: the draft PR Enhance STM library readability - Rename functions #2632 has been updated and is ready to be merged
List the invalid/missing immutable files in the verify command in client CLI #2618: we have kept working on the issue and the developments have been pushed to the ctl/2618-list-invalid-or-missing-immutable-files-in-verify-command branch
Monthly report June 2025 #28: the PR has been created with the Mithril sections
CIP-0137 | Fix mini-protocols and update implementation plan #1047: the PR has been created and is pending review
fix(network): add missing KES period in DMQ message #671: the PR has been created and is pending review
We have also prepared the sprint planning for the next iteration

2025-07-07

Synchronize certificate chain of follower aggregator #2534: we have kept working on the issue and the developments have been pushed to the djo/2534/aggregator-sync-master_follower branch
Upgrade to Cardano 10.5 #2623: we will resume working on the issue once the 10.5.0 version is released. The developments have been pushed to the jpraynaud/2623-upgrade-cardano-node-10.5 branch
Implement a fake DMQ node with Mithril relay #2627: we have started to work on the issue, and the developments have been pushed to the jpraynaud/2627-fake-dmq-node-in-relay branch
Clients support Mithril era transition #2619: the PR feat: add support for Mithril era transition in clients #2633 has been created, reviewed and is ready to be merged
Enhance STM library readability #2568: the draft PR Enhance STM library readability - Rename functions #2632 has been updated
List the invalid/missing immutable files in the verify command in client CLI #2618: we have started to work on the issue
Monthly report June 2025 #28: the PR has been created with the Mithril sections
CIP-0137 | Fix mini-protocols and update implementation plan #1047: the PR has been created and is pending review
fix(network): add missing KES period in DMQ message #671: the PR has been created and is pending review

2025-07-04

Synchronize certificate chain of follower aggregator #2534:we have kept working on the issue and the developments have been pushed to the djo/2534/aggregator-sync-master_follower branch
Upgrade to Cardano 10.5 #2623: we will resume working on the issue once the 10.5.0 version is released. The developments have been pushed to the jpraynaud/2623-upgrade-cardano-node-10.5 branch
Implement a fake DMQ node with Mithril relay #2627: we have started to work on the issue, and the developments have been pushed to the jpraynaud/2627-fake-dmq-node-in-relay branch
Clients support Mithril era transition #2619: the developments have been pushed to the dlachaume/2619/client-era-support branch
Add client CLI version in stderr #2620: the PR Add print in output of the client CLI version at each command execution #2630 has been reviewed and merged
Enhance STM library readability #2568: the PR Enhance STM library readability - Deprecate Old Structs #2629 has been reviewed and merged. The draft PR Enhance STM library readability - Rename functions #2632 has been created
Monthly report June 2025 #28: the PR has been created with the Mithril sections
CIP-0137 | Fix mini-protocols and update implementation plan #1047: the PR has been created and is pending review
We have also checked that no test SPO we operate needed to have their KES keys rotated

2025-07-03

Synchronize certificate chain of follower aggregator #2534:we have kept working on the issue and the developments have been pushed to the djo/2534/aggregator-sync-master_follower branch
Build Linux ARM binaries in the CI #2178: the PR ci: add Linux arm64 support #2628 has been merged. The issue is closed
Upgrade to Cardano 10.5 #2623: we will resume working on the issue once the 10.5.0 version is released. The developments have been pushed to the jpraynaud/2623-upgrade-cardano-node-10.5 branch
Implement a fake DMQ node with Mithril relay #2627: we have started to work on the issue, and the developments have been pushed to the jpraynaud/2627-fake-dmq-node-in-relay branch
Clients support Mithril era transition #2619: the developments have been pushed to the dlachaume/2619/client-era-support branch
Add client CLI version in stderr #2620: the PR Add print in output of the client CLI version at each command execution #2630 has been created and will be ready for review shortly
Monthly report June 2025 #28: the PR has been created with the Mithril sections
CIP-0137 | Fix mini-protocols and update implementation plan #1047: the PR has been created and is pending review

2025-07-02

Stabilize Cardano DB v2 client CLI/library - Phase 2 #2577: the PR Stabilization of cardano db v2 (aggregator) #2610 has been merged. The issue is closed
Synchronize certificate chain of follower aggregator #2534:we have kept working on the issue and the developments have been pushed to the djo/2534/aggregator-sync-master_follower branch
Upgrade to Rust 2024 edition #2582: we have merged the PR Upgrade to Rust 2024 edition #2613. The issue is closed
Build Linux ARM binaries in the CI #2178: the PR ci: add Linux arm64 support #2628 has been created, reviewed and is ready to be merged
Use alternative to Sendgrid for email notifications in CI #2617: the PR ci: replace Sendgrid usage in Test Notify on Failure GitHub workflow #2626 has been merged. The issue is closed
Upgrade to Cardano 10.5 #2623: we will resume working on the issue once the 10.5.0 version is released. The developments have been pushed to the jpraynaud/2623-upgrade-cardano-node-10.5 branch
Implement a fake DMQ node with Mithril relay #2627: we have started to work on the issue, and the developments have been pushed to the jpraynaud/2627-fake-dmq-node-in-relay branch
Clients support Mithril era transition #2619: we have started to work on the issue
Monthly report June 2025 #28: the PR has been created with the Mithril sections
CIP-0137 | Fix mini-protocols and update implementation plan #1047: the PR has been created and is pending review

2025-07-01

Stabilize Cardano DB v2 client CLI/library - Phase 2 #2577: the PR Stabilization of cardano db v2 (aggregator) #2610 is ready to be merged
Synchronize certificate chain of follower aggregator #2534: the PR test:enhance certificate chain builder and mock build #2615 has been merged. We have kept working on the issue and the developments have been pushed to the djo/2534/aggregator-sync-master_follower branch
Implement a publisher with the n2c Local Message Submission mini-protocol with Pallas #2539: the PR feat: add DMQ publisher/consumer in signer/aggregator #2599 has been merged. The issue is closed
Implement a consumer with the n2c Local Message Notification mini-protocol with Pallas #2540: the PR feat: add DMQ publisher/consumer in signer/aggregator #2599 has been merged. The issue is closed
Upgrade to Rust 2024 edition #2582: we will merge the PR Upgrade to Rust 2024 edition #2613 on Wednesday
Build Linux ARM binaries in the CI #2178: we have kept working on the issue and a draft PR will be created shortly
Use alternative to Sendgrid for email notifications in CI #2617: the PR ci: replace Sendgrid usage in Test Notify on Failure GitHub workflow #2626 has been created and is pending review
Upgrade to Cardano 10.5 #2623: we have started to work on the issue and the developments have been pushed to the jpraynaud/2623-upgrade-cardano-node-10.5 branch
Implement a fake DMQ node with Mithril relay #2627: the issue has been created and groomed. We have started to work on the issue