v0.15.0

Release Notes

Added

• all new builtins for protocol version 11 hard fork
• JavaScript Emulator support for cross-platform testing
• HD wallet implementation with BIP-39 mnemonic, BIP32-Ed25519 key derivation, and CIP-1852 account
• Conway era ledger state rules: DELEG and POOL transitions for stake delegation and pool
  registration management
• TxBuilder.draft method for unbalanced transaction assembly
• txBuilder function with CardanoInfo context parameter
• type-safe UtxoQuery DSL with parallel execution and rate limiting for UTxO queries
• Transaction.scriptContexts extension method for easier script context access
• MaryEraValue support (CIP-0153)
• expModInteger builtin (CIP-109) for modular exponentiation
• bls12_381_G1_multiScalarMul and bls12_381_G2_multiScalarMul builtins (CIP-0109)
• g1 and g2 string interpolators for BLS12-381 elements
• use dropList for case class field selection at index >= 2 on PlutusV4
• Pretty typeclass with automatic derivation for ADTs and Cardano ledger types
• Eq.derived for automatic equality typeclass derivation
• design patterns documentation: Merkelized Validators, Parameter Validation, OptimizedPaymentSplitter
• Crowdfunding, English Auction, Lottery, and PriceBet smart contract examples
• multi-environment integration testing infrastructure with Yaci DevKit consolidation
• comprehensive scalus-testkit API with EvalTestKit and ScalusTest base classes
• Output type alias for TransactionOutput
• fetchScript method to retrieve scripts from Blockfrost
• 5 ADA threshold for collateral return optimization

Changed

• reorganized package structure - scalus.builtin types and scalus.prelude moved to new locations
• Compile and Ignore annotations moved to scalus.compiler package
• Validator traits moved from prelude to v3 package
• Provider deprecated in favor of BlockchainProvider
• simplified BlockfrostProvider API with platform-specific backends
• BLS12-381 classes moved to scalus.uplc.builtin.bls12_381 package with shorter names
• optimized toData for constant ByteString, String, Boolean, and Integer values
• optimized mkNilData builtin to constant
• optimized Eq.derived to use direct field access
• improved PlutusV3 match lowering to reduce script size
• renamed __z_combinator to __Z
• deprecated Contract trait
• removed deprecated code from 0.12.x

Fixed

• suppress false warnings for type tests on enum variants
• handle inline accessors in compiler plugin
• ensure error messages appear in UPLC traces
• ByteString now extends Serializable
• security improvements for example validators: AuctionValidator, BettingValidator, Crowdfunding,
  VaultValidator, VestingValidator
• use Conway-style certificates for script-based stake registration
• platform-specific modPow for Scala.js and Scala Native compatibility

Documentation

• Documentation: https://scalus.org/docs
• Getting started: https://scalus.org/docs/get-started

Contributors

@nau

@rssh

@sae3023

@roman-hulenko

@sergey-scherbina

@fernweh0