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Weekly development report as of 2025-02-07
Emmanuel
Weekly development updatesDevelopment+ 1

Weekly development report as of 2025-02-07

CORE TECHNOLOGY The performance and tracing team released new benchmarks and performance baselines for node v.10.2 for UTXO-HD, the new Glasgow Haskell Compiler (GHC), and Genesis, including benchmarks for a 'Periodic tracer'. They also labeled threads throughout the node to improve trace clarity and fixed a race condition in the ekg-wai monitoring dependen...
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Weekly development report as of 2025-01-24
Emmanuel
Weekly development updatesDevelopment+ 1

Weekly development report as of 2025-01-24

CORE TECHNOLOGY This week, the consensus team continued improving documentation, enhancing the security of the consensus layer, and contributing to early-stage efforts in the Peras workstream. The UTXO-HD branch is being updated to utilize forward deserializability for transaction outputs (commits: 1, 2, 3). A successful local chain synchronization was perf...
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Weekly development report as of 2025-01-31
Emmanuel
Weekly development updatesDevelopment+ 1

Weekly development report as of 2025-01-31

CORE TECHNOLOGY This week, the core technology teams, in collaboration with the community and Intersect working groups, finalized work on the Conway ledger era, successfully delivering the Plomin hard fork. See more details in the Voltaire section.  Over the past weeks, the ledger team also focused on minor improvements across implementation and testing. T...
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Weekly development report as of 2025-01-17
Emmanuel
Weekly development updatesDevelopment+ 1

Weekly development report as of 2025-01-17

CORE TECHNOLOGY Over the past few weeks, the ledger team focused on polishing Conway ledger features in preparation for this month’s Plomin hard fork and continued testing to increase confidence in this transition. As part of this effort, the team discovered and resolved several bugs. All stake pool operators (SPOs) are encouraged to upgrade to Cardano node...
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Weekly development report as of 2025-01-10
Emmanuel
Weekly development updatesDevelopment+ 1

Weekly development report as of 2025-01-10

CORE TECHNOLOGY This week, the core technology teams released Cardano node v.10.1.4, which ensures the network is ready for the upcoming Plomin hard fork. This release includes mempool safeguards designed to block specific types of problematic transactions, further enhancing the reliability and security of the network. The consensus team worked on the augm...
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Weekly development report as of 2024-12-13
Emmanuel
Weekly development updatesDevelopment+ 1

Weekly development report as of 2024-12-13

Dear community, this report marks the final development update for 2024. Regular updates will resume on January 10, 2025. Wishing everyone happy holidays and a wonderful New Year🎄! Here’s to a year ahead filled with exciting progress, new milestones, and shared success. ✨ CORE TECHNOLOGY Over the past few weeks, the networking team collaborated with the ...
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Weekly development report as of 2024-12-06
Emmanuel
Weekly development updatesDevelopment+ 1

Weekly development report as of 2024-12-06

CORE TECHNOLOGY This week, the SRE team worked on Cardano environment improvements and general maintenance. They released Cardano node v.10.1.3 and DB Sync v.13.6.0.2 and v.13.6.0.4 to all environments, and configured mainnet bootstraps, enabling a shared dashboard. The ledger team discovered and fixed a bug in the ledger that was backported in a patch rel...
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Weekly development report as of 2024-11-29
Emmanuel
Weekly development updatesDevelopment+ 1

Weekly development report as of 2024-11-29

CORE TECHNOLOGY This week, the consensus team began preparing a proposal for the technical steering committee (TSC) addressing chain growth violations. They also authored a document on the Cardano-specific implementation of the Praos protocol theorem. The DB Sync team released v.13.6.0.2, which is compatible with node v.10.1.2 and includes rollback speed i...
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Weekly development report as of 2024-11-22
Emmanuel
Weekly development updatesDevelopment+ 1

Weekly development report as of 2024-11-22

CORE TECHNOLOGY This week, the core technology teams, in collaboration with the Cardano Foundation, released several components compatible with the latest Cardano node version – Cardano DB Sync, Cardano GraphQL, Cardano Rosetta servers, and Cardano wallet. This means that the latest node version is compatible with all components. For more details, see relea...
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Weekly development report as of 2024-11-15
Olga Hryniuk
Weekly development updatesDevelopment+ 1

Weekly development report as of 2024-11-15

CORE TECHNOLOGY This week, IO started collaborating with Sundae Labs and Well-Typed to validate Ouroboros Leios’ feasibility, impact, trade-offs, and implementation costs. To dive deeper into Ouroboros Leios, see this video about 'Near-optimal throughput', and stay tuned for more details. The networking team announced that support for the non-P2P network s...
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Weekly development report as of 2024-11-08
Emmanuel
Weekly development updatesDevelopment+ 1

Weekly development report as of 2024-11-08

CORE TECHNOLOGY This week, the core technology teams released node v.10.1.2 – an update to the v.10.1.1 release. The DB Sync team focused on a pre-release of version 13.6.0.0 compatible with node v.10.1.0 and are in the process of testing before the mainnet release. The ledger team focused on improving internal code quality. The main feature introduced wa...
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Weekly development report as of 2024-11-01
Emmanuel
Weekly development updatesDevelopment+ 1

Weekly development report as of 2024-11-01

CORE TECHNOLOGY This week, the core technology teams released node v.10.1.1, a mainnet release to support the Chang #2 upgrade. This release brings several enhancements to the governance system, including: Support for stake pool operators (SPOs) delegating to pre-defined voting options Support for auto-abstain delegate representatives (DRep) votes, replac...
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Weekly development report as of 2024-10-25
Emmanuel
Weekly development updatesDevelopment+ 1

Weekly development report as of 2024-10-25

CORE TECHNOLOGY This week, the ledger team finalized changes for the upcoming hard fork to protocol version 10.0. Key changes include ensuring the ability to unregister a reward account and withdraw funds in the same transaction, as well as fixing a bug to verify DRep existence for all stake credential delegations. The team continued testing Conway features...
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Weekly development report as of 2024-10-18
Emmanuel
Weekly development updatesDevelopment+ 1

Weekly development report as of 2024-10-18

CORE TECHNOLOGY This week, the consensus team released new versions of the diff-containers-1.3.0.0, fingertree-rm-1.0.0.3, cardano-lmdb-0.4.0.2, and cardano-lmdb-simple-0.7.0.1 packages. Improvements to IOSim included adding MonadLabelledMVar and enhancing the Show instance for ScheduleMod. The team also released consensus packages for Node 10.0 and worked ...
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Weekly development report as of 2024-10-11
Olga Hryniuk
Weekly development updatesDevelopment+ 1

Weekly development report as of 2024-10-11

CORE TECHNOLOGY This week, the DB Sync team addressed issues from the latest release, including off-chain data fixes, incorrect pool-stat fields, and invalidated votes. They also added a new feature that optionally creates a separate address table, separating it from the tx\_out table. Finally, they collaborated with the ledger team on memory improvements a...
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Weekly development report as of 2024-10-04
Emmanuel
Weekly development updatesDevelopment+ 1

Weekly development report as of 2024-10-04

CORE TECHNOLOGY Over the past two weeks, the consensus team has been working to establish a baseline for the consensus quantitative timeliness agreements(QTA). This helps inform discussions on sync performance goals with the networking team, particularly improvements related to Genesis. Additionally, the team rebased UTXO-HD atop main, with all tests succes...
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Weekly development report as of 2024-09-27
Emmanuel
Weekly development updatesDevelopment+ 1

Weekly development report as of 2024-09-27

CORE TECHNOLOGY Last week, the core technology teams released node v.9.2.0, bringing several improvements and bug fixes: Script-based DRep support in the update certificate CLI command Improved transaction view CLI command Governance-related ledger state queries Improved Plutus debugging functionality A new method for calculating CBOR-encoded transacti...
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Weekly development report as of 2024-09-20
Emmanuel
Weekly development updatesDevelopment+ 1

Weekly development report as of 2024-09-20

CORE TECHNOLOGY This week, the consensus team focused on various areas: They have identified the UTXO set as a primary cause of performance degradation during ledger snapshots. Together with the ledger team, they have proposed a solution to reduce memory allocations when serializing the ledger state. The team drafted scripts to estimate the necessary band...
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Weekly development report as of 2024-09-13
Emmanuel
Weekly development updatesStatistics+ 1

Weekly development report as of 2024-09-13

CORE TECHNOLOGY This week, the ledger team implemented a new Conway-related feature that disallows stake credentials from withdrawing rewards if they are backed by a key hash and not delegated to any DRep. This feature will become effective after the bootstrap phase. The team also worked on additional tests and fixed several minor bugs, including GovInfoEve...
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Weekly development report as of 2024-09-06
Emmanuel
Weekly development updatesStatistics+ 1

Weekly development report as of 2024-09-06

CORE TECHNOLOGY The core technology teams released Cardano node v.9.1.1 to address an issue where 9.1.0 nodes would replay from the genesis block upon restart during the Conway era. See the Voltaire section for more details. The consensus team introduced a snapshot-converter tool that allows non-UTXO-HD ledger snapshots to be converted into UTXO-HD ones, e...
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