v0.3.1

Release Notes - ZEVM v0.3.0

Release Date: December 2, 2025

Added

• PrecompileId.Custom variant: Added support for custom precompile identifiers via PrecompileId.custom("id")
• PrecompileId.name() method: Returns EIP-7910 standardized names for all precompiles (e.g., "SHA256", "BN254_ADD")
• PrecompileId.precompile() method: Convenience method to get the appropriate precompile implementation for a given spec, handling spec-specific variants automatically

Fixed

• ModExp Osaka gas calculation: Fixed gas calculation formula to use max(500, complexity * iteration_count) instead of 500 + complexity * iteration_count to match EIP-7883 specification
• ModExp Osaka complexity calculation: Fixed to use max(base_len, mod_len) instead of max(base_len, exp_len, mod_len) for complexity calculation
• EIP-7823 input size limit: Corrected ModExp input size limit from 32768 bytes to 1024 bytes per parameter as specified in EIP-7823

Changed

• PrecompileId type: Changed from enum to union(enum) to support Custom variant while maintaining backward compatibility with all existing precompile IDs

What's Changed

• chore: Release version 0.3.1 with new features and fixes by @10d9e in #5
• formatting by @10d9e in #6

Full Changelog: v0.3.0...v0.3.1