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@dependabot dependabot bot commented on behalf of github Dec 29, 2025

Updates the requirements on wasmtime to permit the latest version.

Release notes

Sourced from wasmtime's releases.

v40.0.0

40.0.0

Released 2025-12-20.

Added

  • WASIp3 support for wasi:http now implements Response::from_http to convert from standard Rust types to WASI types. #12063

  • Cranelift now supports a "patchable" ABI which has a maximum number of arguments and clobbers no registers. This is paired as well with a new patchable_call instruction which supports being turned into NOPs at runtime. #12061 #12101

Changed

  • Support for the WebAssembly threads proposal is now classified as tier 2 by default. Additionally creation of SharedMemory is disabled by deafult behind a new config knob/CLI flag. #12036

  • A variety of peephole-style optimizations have been added to Cranelift's optimization passes. #11994 #11995 #11996 #11997 #11998 #11999 #12000 #12006 #12008

  • Component host functions have been slightly optimized to remove an Arc clone and reduce contention. #11987

  • Support for component-model-async has been updated to account for the changes specified in WebAssembly/component-model#578. This means that historical binaries using WASIp3, for example, are no longer valid. Recompilation of historical components will be required and source-level changes may also be required in some circumstances. #12031 #12043

  • The UnsyncBoxBody type is now used everywhere in wasmtime-wasi-http instead of just in the wasip3 support.

... (truncated)

Changelog

Sourced from wasmtime's changelog.

41.0.0

Unreleased.

Added

Changed


Release notes for previous releases of Wasmtime can be found on the respective release branches of the Wasmtime repository.

... (truncated)

Commits
  • 0807b00 Release Wasmtime 40.0.0 (#12192)
  • fadd22a [40.0.0] trap on blocking call in sync task before return (#12144)
  • c242041 Add release notes (#12132)
  • ac3358b Fix various broken links in docs. (#12125)
  • 058a9bc Components: implement exception-tag translation in core module types. (#12122)
  • 54826c0 Update wasm-tools/wit-bindgen dependencies (#12121)
  • 245580e Cranelift: support fuzzing patchable_call. (#12118)
  • 1d73897 Use core::convert::Infallible instead of our own Uninhabited type (#12115)
  • 9a6aa39 Revert "Cranelift: Reassociate long and narrow chains of operations into shal...
  • 91abf8c trap on read from and write to intra-component stream/future (#12117)
  • Additional commits viewable in compare view

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Updates the requirements on [wasmtime](https://github.com/bytecodealliance/wasmtime) to permit the latest version.
- [Release notes](https://github.com/bytecodealliance/wasmtime/releases)
- [Changelog](https://github.com/bytecodealliance/wasmtime/blob/main/RELEASES.md)
- [Commits](bytecodealliance/wasmtime@v33.0.2...v40.0.0)

---
updated-dependencies:
- dependency-name: wasmtime
  dependency-version: 40.0.0
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>
@dependabot dependabot bot added dependencies Pull requests that update a dependency file rust Pull requests that update rust code labels Dec 29, 2025
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