win_http 0.2.2

A Windows HTTP client for package:http using the native WinHTTP API. Provides system proxy support, Schannel TLS, and automatic decompression. Requires Windows 8.1+.

0.2.2

• Enabled WINHTTP_OPTION_IPV6_FAST_FALLBACK (Happy Eyeballs) on the session so dual-stack hosts with an unreachable IPv6 route fall back to IPv4 within milliseconds instead of stalling until the IPv6 connect times out (Windows 10 2004+, silent fallback on older versions).

0.2.1

• Fixed async request error reporting so WinHTTP-owned callback pointers are not read after NativeCallable.listener dispatch.
• Request failures now report safe inferred DNS, connection, response, and TLS messages instead of bogus native error codes from stale callback memory.

0.2.0

• Breaking: Migrated from sync WinHTTP + isolates to async WinHTTP callbacks. No public API changes, but internal architecture is completely different.
• Abort support via WinHttpCloseHandle (native cancellation).
• HTTP/2 enabled by default (Windows 10+, silent fallback).
• Added maxConnectionsPerServer to WinHttpClientConfiguration.
• Eliminated per-request isolate spawning overhead.
• 64KB read buffer for better throughput.

0.1.0

• Initial release.
• WinHttpClient implementing package:http BaseClient via WinHTTP FFI.
• Automatic proxy detection (WINHTTP_ACCESS_TYPE_AUTOMATIC_PROXY).
• Configurable timeouts, user agent, and proxy settings.
• Automatic gzip/deflate decompression (Windows 8.1+).
• Response body streaming via isolate workers.
• Passes http_client_conformance_tests suite (172/172 non-skipped tests).