v0.45.0 - 2025-05-06

Added

• Added support for Wasm function call resumption after running out of fuel. #1498
  • This feature is very useful when using Wasmi inside a scheduler that works with
    Wasmi's fuel metering to provide amount of compute units to different Wasm execution
    threads for example.
• Added missing wasmi_core::simd API functions for relaxed-simd. #1447
• Added implementations for Rust's Error trait for all wasmi error types on no_std. #1462

Changed

• Avoid performing duplicate type and validation checks in Linker::instantiate. #1476
• Updated wasm-tools dependencies to v228. #1463
• Removed most of wasmi_core::TypedVal's API. #1457
  • The newer wasmi_core::wasm API is to be preferred and provides the same functionality.

Fixed

• Fixed a bug that Wasmi did not make wasmparser's parser aware of enabled Wasm features. #1502
  • Making wasmparser aware of the enabled Wasm features allows it to detect malformed Wasm
    binaries during parsing.

Internal

• Make Wasmi's executor non-generic over the Store's T. #1449
• Changes to Wasmi's IR:
  • Removed all conditional return instructions. #1486
    • This allows Wasmi to apply its powerful cmp+branch fusion in more places.
  • Remove most of the bulk-memory (and bulk-table) instruction variants. #1489
    • Wasmi still has optimized variants for the most common cases.
  • Add new logical-comparator instructions. #1494
    • This further enhances Wasmi's powerful cmp+branch instruction fusion.
  • Add negated f{32,64}.{lt,le} instructions. #1496
    • This allows Wasmi to apply its cmp+nez fusion for f{32,64}.{le,lt} instructions as well.
  • Re-design Wasmi's select instructions. #1497
    • This allows to use Wasmi's powerful cmp op-code fusion for select instructions.
• Moved many wasmi internals into wasmi_core:
  • Add FuncType #1458
  • Add Fuel, Memory, Table, Global, ResourceLimiter #1464
  • Replace uses in wasmi with wasmi_core definitions. #1460