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[wasi-sockets] Fresh UDP sockets occasionally return <code>ErrorCode::WouldBlock</code> on first send

bugIncorrect behavior in the current implementation that needs fixingIncorrect behavior in the current implementation that needs fixing

wasiIssues pertaining to WASIIssues pertaining to WASI

Status: Open.

#12612 In bytecodealliance/wasmtime;

· dicej opened on Feb 17, 2026

wasmtime::component::bindgen! generated doc-comments have an extra <code>/</code>

Status: Open.

#12591 In bytecodealliance/wasmtime;

· NickLarsenNZ opened on Feb 13, 2026

[wasi-sockets] Inconsistency in udp/send with unspecified remote address

bugIncorrect behavior in the current implementation that needs fixingIncorrect behavior in the current implementation that needs fixing

wasiIssues pertaining to WASIIssues pertaining to WASI

Status: Open.

#12568 In bytecodealliance/wasmtime;

· saulecabrera opened on Feb 11, 2026

[wasi-sockets] Inconsistency with inherited properties

bugIncorrect behavior in the current implementation that needs fixingIncorrect behavior in the current implementation that needs fixing

wasiIssues pertaining to WASIIssues pertaining to WASI

Status: Open.

#12561 In bytecodealliance/wasmtime;

· saulecabrera opened on Feb 10, 2026

Panic juggling subtasks in wasip3

wasm-proposal:component-model-asyncIssues related to the WebAssembly Component Model async proposalIssues related to the WebAssembly Component Model async proposal

Status: Open.

#12544 In bytecodealliance/wasmtime;

· alexcrichton opened on Feb 9, 2026

Expose memory <code>needs_init</code> on <code>LinearMemory</code>/<code>RuntimeLinearMemory</code>

Status: Open.

#12517 In bytecodealliance/wasmtime;

· d-sonuga opened on Feb 4, 2026

SIGABRT crashes when creating many engines/modules due to GLOBAL_CODE registry address reuse

Status: Open.

#12511 In bytecodealliance/wasmtime;

· zacharywhitley opened on Feb 4, 2026

Cranelift: make load-sinking less implicit in the face of type widening

Status: Open.

#12477 In bytecodealliance/wasmtime;

· cfallin opened on Jan 29, 2026

p3: Inconsistent behavior in sockets/udp send

bugIncorrect behavior in the current implementation that needs fixingIncorrect behavior in the current implementation that needs fixing

wasiIssues pertaining to WASIIssues pertaining to WASI

Status: Open.

#12475 In bytecodealliance/wasmtime;

· saulecabrera opened on Jan 29, 2026

Enable <code>WasmStr</code>/<code>WasmList</code> with <code>call_concurrent</code>

wasm-proposal:component-model-asyncIssues related to the WebAssembly Component Model async proposalIssues related to the WebAssembly Component Model async proposal

Status: Open.

#12467 In bytecodealliance/wasmtime;

· alexcrichton opened on Jan 29, 2026

<code>ResourceAny</code> API ergonomics

wasm-proposal:component-modelIssues related to the WebAssembly Component Model proposalIssues related to the WebAssembly Component Model proposal

wasmtime:apiRelated to the API of the `wasmtime` crate itselfRelated to the API of the `wasmtime` crate itself

Status: Open.

#12465 In bytecodealliance/wasmtime;

· crepererum opened on Jan 29, 2026

DRC collector leaks GC refs when struct/array initialization fails partway through

bugIncorrect behavior in the current implementation that needs fixingIncorrect behavior in the current implementation that needs fixing

wasm-proposal:gcIssues with the implementation of the gc wasm proposalIssues with the implementation of the gc wasm proposal

Status: Open.

#12456 In bytecodealliance/wasmtime;

· zzjas opened on Jan 27, 2026