wasd 0.5.0

A pure Dart WebAssembly runtime for Dart and Flutter, with WASI Preview1 plus Dart VM runners for stable WASI 0.2.12 command/proxy and 0.3.0 command/service components.

0.5.0

• Execute stable WASI 0.3.0 wasi:cli/command and wasi:http/service components on the native Dart VM backend.
• Bind the frozen six-package, eight-world WASI 0.3.0 contract across random, clocks, filesystem, sockets, cli, and http; keep wasi:clocks/timezone explicitly outside the release contract.
• Complete the async Canonical ABI paths required by those worlds, including task/subtask scheduling, waitables, futures, streams, cancellation, backpressure, resource ownership, and scoped component types.
• Add native Preview3 filesystem, socket, outgoing HTTP, command, and HTTP service execution while keeping Node.js and browser runner support unclaimed.
• Keep explicit native TCP bind unsupported rather than exposing Dart's already-listening ServerSocket.bind as a false WASI bound state; unbound TCP listen and connect remain available.
• Reject static absolute-path, parent-traversal, and symlink escapes from native Preview3 preopens; document that path-based Dart filesystem APIs do not prevent races with an external actor replacing path nodes concurrently.
• Record the frozen Component Model async gates separately: WASD strict decode 37/37, wasm-tools validation 31/31, and Wasmtime reference execution 31/31. The latter two are upstream validation/reference evidence, not WASD WAST execution.
• Pass 39/45 frozen official wasm32-wasip3 wasi-testsuite fixtures. The six native TCP bind-dependent fixtures (sockets-tcp-bind, sockets-tcp-listen, sockets-echo, sockets-tcp-connect, sockets-tcp-receive, and sockets-tcp-send) fail with the documented not-supported capability boundary; there are no skips, expected failures, or unexpected passes.
• Pin the official WASI, Component Model, wasi-testsuite source, and precompiled fixture revisions used by the Preview3 release gate.

0.4.0

• Execute stable WASI 0.2.12 wasi:cli/command and wasi:http/proxy components on the native Dart VM backend.
• Implement the synchronous Canonical ABI paths required by those verified WASI 0.2.12 worlds and fixtures, including lowering/lifting, indirect values, post-return, nested component index spaces, and nominal resource ownership.
• Add scoped resource cleanup and ownership enforcement across Preview2 CLI, filesystem, I/O, sockets, and HTTP hosts.
• Align stable host semantics for stream permits and terminal errors, symlink-safe filesystem paths and byte-accurate metadata, socket and DNS lifecycles, dependency-free IDNA ToASCII names, and wire-faithful HTTP redirects, content coding, body, and trailer completion.
• Verify command execution against a Wasmtime Preview2 fixture and proxy execution against components generated from the official WASI 0.2.12 WIT.
• Keep Dart HttpClient trailer limitations explicit: outgoing-handler requests and incoming responses that declare trailers report HTTP-protocol-error, while proxy response trailers remain available.

0.3.0

• Stabilize Preview1 command-module support with real host filesystem preopens across Dart VM and Node.js, including host-backed file, directory, symlink, and timestamp behavior.
• Record the current WebAssembly core and WASI Preview1 conformance gates in an executable TODO under doc/.
• Add Preview2 component host/import coverage for standard wasi:io, wasi:cli, wasi:filesystem, and wasi:sockets packages.
• Add Preview3 component host/filesystem/async-profile scaffolding without claiming full Preview3 runtime coverage.
• Keep unsupported Preview2 and Preview3 operations explicit through WASI error results instead of reporting fake success.

0.2.0

• Restructure the package around explicit package:wasd/wasm.dart and package:wasd/wasi.dart entrypoints, with package:wasd/wasd.dart re-exporting both surfaces.
• Ship the pure Dart WebAssembly runtime split into JS and native backends with regression-tested compile, instantiate, validate, typed exports, memory/table/global/tag wrappers, and host import support.
• Replace the old WASI API with a single WASI Preview1 surface aligned with the current 0.2 package design, covering command-style execution plus virtual filesystem basics on native and browser runtimes.
• Refresh examples and docs around the new 0.2 API, including the Flutter DOOM demo under example/doom.

0.1.0

• Promote the package to the first minor release with a stable public entrypoint at package:wasd/wasd.dart.
• Expand runtime coverage with regression-tested module execution, host imports, and validator behavior.
• Ship WASI Preview1 support with WasiPreview1 and WasiRunner execution paths.
• Add component-model decoding/instantiation and canonical ABI invocation helpers.
• Improve tooling and examples, including conformance runners and the Flutter example/doom demo.

0.0.1

• Rename project to WASD (Wasm And Dart System / WebAssembly System for Dart).
• Publish initial open-source package structure on pub.dev.
• Add lib/wasd.dart as the primary package entrypoint.
• Update examples, tests, and demo app imports to package:wasd/wasd.dart.
• Keep lib/pure_wasm_runtime.dart as a compatibility alias.