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Change semantics of protocol version in BlockHeader

DijkstraEraLedger era that will follow after ConwayLedger era that will follow after Conway

Status: Open.

#5763 In IntersectMBO/cardano-ledger;

· lehins opened on Apr 22, 2026

Switch previous PParams to previous ProtVer

🍰 good first issueGood for newcomersGood for newcomers

Status: Open.

#5759 In IntersectMBO/cardano-ledger;

· lehins opened on Apr 21, 2026

Increase test-coverage for queries

💳 technical-debtIssues related to technical debt we introducedIssues related to technical debt we introduced

🕵️ testing

🎰 property test

cddlIssues related to cddl specificationIssues related to cddl specification

ledger-state-queryAny ticket related to ledger state queriesAny ticket related to ledger state queries

maintenanceTasks that are planned to be done as part of the regular maintenance of the project.Tasks that are planned to be done as part of the regular maintenance of the project.

serializationAnything that affects serialization of ledger typesAnything that affects serialization of ledger types

Status: Open.

Task

#5722 In IntersectMBO/cardano-ledger;

· aniketd opened on Apr 10, 2026

Stop using Coders for onchain data decoding

DijkstraEraLedger era that will follow after ConwayLedger era that will follow after Conway

serializationAnything that affects serialization of ledger typesAnything that affects serialization of ledger types

Status: Open.

#5718 In IntersectMBO/cardano-ledger;

· lehins opened on Apr 8, 2026

Automatically report flaky tests via CI

🕵️ testing

🛠️ infrastructure

Status: Open.

Feature

#5714 In IntersectMBO/cardano-ledger;

· Lucsanszky opened on Apr 7, 2026

Flaky testing setup on CI

🛠️ infrastructure

Status: Open.

#5711 In IntersectMBO/cardano-ledger;

· lehins opened on Apr 7, 2026

Fix performance regression due to ConwayAccountState representation

performance

Status: Open.

#5705 In IntersectMBO/cardano-ledger;

· lehins opened on Apr 3, 2026

Ledger state query for number of stake pool delegations

🍰 good first issueGood for newcomersGood for newcomers

enhancementNew feature or requestNew feature or request

Status: Open.

Feature

#5698 In IntersectMBO/cardano-ledger;

· lehins opened on Apr 1, 2026

Add generate-cbor executable per era

cddlIssues related to cddl specificationIssues related to cddl specification

Status: Open.

#5686 In IntersectMBO/cardano-ledger;

· lehins opened on Mar 26, 2026

Avoid rebuilding for doctests

💳 technical-debtIssues related to technical debt we introducedIssues related to technical debt we introduced

Status: Open.

#5685 In IntersectMBO/cardano-ledger;

· lehins opened on Mar 26, 2026

Make doctests work with ghc-9.14

Status: Open.

#5680 In IntersectMBO/cardano-ledger;

· neilmayhew opened on Mar 26, 2026

Add conformance for UTXOS rule

🕵️ testing

conformance

ConwayEra

Status: Open.

#5678 In IntersectMBO/cardano-ledger;

· Soupstraw opened on Mar 26, 2026