v0.48.0 - 2025-07-21

Added

• Added Wasm reinterpret operators to wasmi_core::wasm API.

Changed

• Marked Module::new_streaming[_unchecked] API deprecated. #1540
  • Reason for the deprecation:
    • The streaming Wasm module creation is not a great fit for Wasmi's target usage.
    • No users are known that depend on this functionality - please inform us if you do!
    • Streaming Wasm module creating has a performance overhead when not needed.
• Changed CompilationMode default to CompilationMode::LazyTranslation. #1530
  • With this default Wasm is still validated eagerly but tranlated to Wasmi IR lazily.
    This gives the best of both worlds: fast startup times while avoiding partial validation.
• Update Wasmtime dependencies to v34. #1563

Fixed

• Fixed a bug that f{32,64}.copysign with immediate rhs operands won't bump fuel. #1539
• Fixed incorrect optimization application for i64.mul_wide_s. #1545 #1546
• Fixed an integer-overflow that could happen when reading or writing memory. #1554

Internal

• Optimize ControlFrame memory footprint slightly. #1534
• Slightly optimize fuse_nez and fuse_eqz routines. #1559
• Simplified lots of FuncTranslator logic. E.g. #1542 #1550 #1552
• Add some new Wasmi specific .wast test cases. #1561 #1562
• Prepare for new Wasmi translator implementation.
  • #1532 #1537 #1541 #1553 #1558 #1560