This week, the Mithril team released the 2543.0 distribution, which adds support for the default incremental backend (v2) for Cardano database restoration, introduces enhanced integrity verification that reports any tampered or missing files in case of failure, and includes various bug fixes and improvements.
The team also continued implementing a simple aggregator discovery mechanism and advanced work on the first phase of decentralizing configuration parameters. Additionally, they made progress implementing the SNARK-friendly STM library by designing its architecture and implementing the Schnorr signature scheme.
Finally, the team completed the implementation of a common HTTP client for the aggregator and made improvements to the protocol security page.
2543.02543 availability2543 distribution #2727
The Plutus team organized and attended UPLC 2025, an event dedicated to the UPLC language, held in Edinburgh last week. Session recordings will be available soon.
Based on community feedback, we have added a new Value primitive, scaleValue, to the upcoming intra-era hard fork, along with several minor refinements to other Value primitives.
We have also continued improving the performance of the UPLC evaluator, specifically by optimizing the inlining of the geq function.
Finally, we are progressing with costing for all Value primitives.
Value primitives (in plutus-private)
This period marks a very nice milestone for the Ledger team. We have finalized CIP-118 - Nested Transactions with drastic simplifications through reliance on CIP-112 - Observe script type and CDDL specification with changes to the transaction. This step puts it in the ready state for the final reviews. Once merged it will conclude the last point on the first milestone listed in the Nested Transaction proposal. Furthermore we have also implemented the distinction between sub-transactions and the top level transaction in such a way that will allow us reuse most of the existing Ledger functionality for transaction validation, regardless of the level. This point takes us right to the finish line of having the second milestone completed as well for the Nested Transaction proposal that was promised by the Ledger team. We expect this milestone to be finalized in the next couple of days.
Beside significant progress on Nested Transactions we have also: implemented a proper solution for preventing invalid serialization for a few obscure edge cases in a transaction, tackled some outstanding tech dept and expanded our test suite.
reqSignerHashes from Witness to GuardAnnotator capable of failing.queryPoolStatequeryPoolStateDeleg.conwayEraSpecificSpectasty from all test suites except those in Byronundefined CI check