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v21.0.0: Release Wasmtime 21.0.0 (#8666)
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@github-actions github-actions released this 20 May 20:23
· 121 commits to main since this release
v21.0.0
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21.0.0

Released 2024-05-20.

Added

  • The wasmtime explore subcommand now supports *.wat files.
    #8314

  • Wasmtime now supports DWARF Fission *.dwp files.
    #8055

  • The wasmtime crate now supports #![no_std], and more information about
    this transition can be found in
    #8341.
    #8463
    #8483
    #8485
    #8528
    #8533

  • A Config knob is now available for one-entry call_indirect caching to
    speed up modules with lots of call_indirect instructions.
    #8509

  • Cranelift's riscv64 backend has initial support for the Zfa Extension.
    #8536

  • The WebAssembly tail-calls proposal is now enabled by default when using the
    Cranelift backend, except for the s390x architecture.
    #8540

Changed

  • Support for NaN canonicalization on x64 has been optimized to avoid branches.
    #8313

  • The bindgen! macro now defaults to assuming imports cannot trap, but this
    behavior is configurable at macro-generation time.
    #8310

  • The fd_{read,write} implementations in wasmtime-wasi have been optimized.
    #8303

  • The wasmtime-wasi-http crate has been refactored and has improved
    documentation.
    #8332
    #8347

  • Unused with parameters in bindgen! now generate an error.
    #8371

  • The fd_read implementation in wasmtime-wasi now only reads into a single
    iovec per call.
    #8415

  • The wasmtime_val_t type in the C API no longer holds any allocations. This
    type must still be manually managed to properly unroot values, however.
    #8451

  • Add an optimized "sleep" path for poll_oneoff to wasmtime-wasi.
    #8429

  • The Wasmtime-internal wasmtime-runtime crate has been removed.
    #8501

  • The pooling allocator now allows twice as many elements as before.
    #8527

  • Using CMake to build the C API has been improved along a number of axes.
    #8490
    #8497
    #8549

Fixed

  • Pooling allocator CLI options are now respected with the wasmtime serve
    subcommand.
    #8525

  • The read implementation for file input streams in wasmtime-wasi now
    correctly handles zero-length reads.
    #8611

Assets 23