Bump wasmtime from 48.0.2 to 49.0.0

[dependabot]

Bumps wasmtime from 48.0.2 to 49.0.0.

Release notes

Sourced from wasmtime's releases.

v49.0.0

49.0.0

Released 2026-09-21.

Added

• Winch now has initial experimental support for the WebAssembly exception-handling proposal. #14066 #14081 #14132 #14149 #14180 #14209

• Wasmtime's type reflection APIs for WebAssembly GC types now have dedicated enums for Heap{Top,Bottom}Types. #14208

• Wasmtime now supports the use of environment variables to configure most CLI arguments in addition to the preexisting CLI flags. #14217

• Cranelift will now fold u{add,mul}_overflow results combined with brif instructions for more optimal codegen. #14217 #14254

• Components can be tested for equality with a new Component::same API. #14257

• The Wasmtime C/C++ API now supports the component-model-implements feature. #14264

• Cranelift will now emit the {u,s}bfm instructions on AArch64. #14187

Changed

• The wide-arithmetic WebAssembly proposal is now enabled by default. #14110

• Config::operator_cost now applies to operators inside constant expressions (global initializers, element and data segment offsets, element segment expressions) and to the synthesized call to a module's start function. Previously each of those was charged 1 fuel unit regardless of the configured cost. #14215

... (truncated)

Changelog

Sourced from wasmtime's changelog.

50.0.0

Unreleased.

Added

• Add --listenfd option to wasmtime serve, which allows launching wasmtime with sockets inherited from a service manager (e.g. systemd socket units).

Changed

• Remove non-functional listenfd WASI CLI option.

---

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

• 49.0.x
• 48.0.x
• 47.0.x
• 46.0.x
• 45.0.x
• 44.0.x
• 43.0.x
• 42.0.x
• 41.0.x
• 40.0.x
• 39.0.x
• 38.0.x
• 37.0.x
• 36.0.x
• 35.0.x
• 34.0.x
• 33.0.x
• 32.0.x
• 31.0.x
• 30.0.x
• 29.0.x
• 28.0.x
• 27.0.x
• 26.0.x
• 25.0.x
• 24.0.x
• 23.0.x
• 22.0.x
• 21.0.x
• 20.0.x
• 19.0.x

... (truncated)

Commits

• 17830bd Release Wasmtime 49.0.0 (#14363)
• 18efdb6 Update release notes (#14322)
• 51387c9 Drop cached compiler contexts between modules/components (#14314) (#14321)
• 9847e1b [49.0.0] Backport some recent fixes/improvements from main (#14306)
• 62ef0a5 Release Wasmtime 49.0.0-rc.1 (#14283)
• cb4c215 Limit alias regions in Wasm-to-CLIF translation to 256 (#14253)
• 0754181 Cranelift: add mid-end opt rules (#14277)
• c518d90 Macro-generate most stack-switching VM* types (#14278)
• b5b8f49 Ensure that LastStores is a proper lattice (#14230)
• 84dbb9f Cranelift: fix uadd_overflow + load sinking. (#14272)
• Additional commits viewable in compare view

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[dependabot]

Superseded by #129.