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v32.0.0: Release Wasmtime 32.0.0 (#10617)
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@github-actions github-actions released this 21 Apr 15:27
· 218 commits to main since this release
v32.0.0
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32.0.0

Released 2025-04-21.

Added

  • {Module,Component}::deserialize_raw can now be used to deserialize an
    in-memory module while relying on external management of the memory.
    #10321

  • An initial implementation of wasi-tls has been added.
    #10249

  • The wasmtime CLI now supports hexadecimal integer CLI arguments.
    #10360

  • Cranelift now supports a log2_min_function_alignment flag.
    #10391

  • A new wasmtime objdump subcommand has been added to help explore and debug
    *.cwasm files.
    #10405

  • Support for the pooling allocator has been added to the C API.
    #10484

  • Support for the guest profiler with the component model has been added.
    #10507

Changed

  • Cranelift MemFlags now has a can_move flag which restricts whether a load
    or store can be moved.
    #10340

  • The .text size of Pulley *.cwasm files should be smaller with less
    padding.
    #10285

  • The wasmtime serve subcommand now implements a graceful shutdown on ctrl-c.
    #10394

  • Stack maps used for GC are now stored in a serialized binary format that is
    faster to deserialize.
    #10404

  • The aegraph implementation in Cranelift has been simplified to remove the
    union-find and canonical eclass IDs.
    #10471

  • The store_list and load_list helpers have been specialized in components
    for f32 and f64.
    #9892

  • Cranelift now removes block params on critical-edge blocks.
    #10485

  • The Linker::define_unknown_imports_as_default_values API now supports
    defining defaults for more kinds of items.
    #10500

  • Wasmtime now requires Rust 1.84.0 to compile.
    #10520

Fixed

  • Winch compilation of extadd instructions has been fixed.
    #10337

  • Fix an issue with DRC collector's barriers.
    #10371

  • Loads on (ref null none) that can trap are now performed.
    #10372

  • Fix reference count management in AnyRef::from_raw.
    #10374

  • An issue with multi-value returns in Winch has been fixed.
    #10370

  • A panic at compile-time from an overflowing shift has been fixed when
    targeting aarch64.
    #10382

  • The wasmtime serve command no longer panics when handle returns before
    calling set.
    #10387

  • Winch compilation of replace_lane instructions with floats has been fixed.
    #10393

  • An invalid integer-shift optimization on vector types has been removed.
    #10413

  • The DWARF loclist to exprloc optimization has been fixed.
    #10400

  • Objects in the DRC collector are now transitively dec-ref's when collected.
    #10401

  • A bug with GC rec gropus and registration in an Engine has been fixed.
    #10435

  • A bug related to GC arrays of GC refs misreported their count of GC edges has
    been fixed.
    #10453

  • A bug related to appropriately adding stack maps for all GC variables has been
    fixed.
    #10456
    #10468

  • A bug with array.fill has been fixed.
    #10470

  • GC structs are no longer reordered to optimize their size to fix subtyping.
    #10463

  • Panics related to exceptions and components being mixed has been fixed.
    #10473

  • Winch stack parameter alignment has been fixed.
    #10513

  • Rendering inline function frames in a trap backtrace has been fixed.
    #10523

Assets 40
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