Z# 0.6.1

The first release for more than Linux: the compiler for Linux x86-64, macOS arm64 and
Windows x64, each built by the macOS one (src/release.sh).

Platforms

• zs build --target takes aarch64-macos, x86_64-macos, x86_64-windows-gnu,
  aarch64-windows-gnu, aarch64-linux-gnu and wasm32 (freestanding, with a Node host):
  clang compiles the IR, zig cc the runtime and the link, no SDK.
• The compiler runs on macOS and Windows. On Windows, a build without --target goes through
  mingw-w64; file names, arguments and the environment are UTF-8; paths work across drives.
• The runtime's loop on epoll, kqueue and IOCP (wepoll); sockets, processes and pipes on Windows.
• Cross builds are the same bytes each time; ThinLTO caches on macOS.

Compiler

• Every mistake of a declaration is reported, not only its first.
• The back half of the compiler runs on all cores; it builds itself faster than the F# compiler did.
• Optimized builds drop what nothing reaches: a hello world is 17 KB, not 89.
• import c works from a fresh clone, and for a target finds its system headers.
• A project's modules are found from its main's folder, in any subfolder.

Editor

• LSP: a function's signature at the end of its line; hover, references and definition of
  type names.

Library

• Task.run waits for the spawned tasks it cancelled.

Fixes

• A dependency's name can't reach outside .zs-cache/deps; a rev starting with - isn't
  passed to git as an option; MCP tools refuse symbolic links.
• A file with a top-level expression reports a parse error instead of panicking.
• The Windows runtime builds with newer mingw-w64 headers, which declare mkdtemp.

Other

• MIT license; examples/logstat, a Z# tour for F# developers.