Changelog

All notable changes to this project will be documented in this file.

The format is based on Keep a Changelog,
and this project adheres to Semantic Versioning.

[0.2.1] - 2026-08-12

docs.rs Build Failure: Added cargo-args = ["--bin", "opc-cli"] to [package.metadata.docs.rs] in opc-cli/Cargo.toml so docs.rs explicitly targets the binary executable (src/main.rs) instead of defaulting to a non-existent --lib target.

crates.io Publication: Published opc-cli and opc-da-client to crates.io.
Standalone windows-rs Integration: opc-da-client fully internalized raw windows-bindgen COM definitions into src/bindings/, eliminating external unmaintained bindings crates.
Windows 7 / Server 2008 R2 Polyfill Bundle: Built legacy release packaging pipeline (package-win7) producing static PE binaries bundled with #![no_std] polyfills (WaitOnAddress, RtlGenRandom, WinRT error stubs).
Quality Pipeline & Automation: Added PowerShell-driven automated quality verification (verify.ps1), release packager (package.ps1), and clean merge workflow (Merge-ToMain.ps1).

Synchronized workspace versions for opc-cli and opc-da-client at 0.2.0.
Internalized ComGuard into opc-da-client crate-private scope. COM MTA apartment initialization and thread affinity are managed transparently by a background worker thread.
Enforced LF line endings across Rust source files with .gitattributes and rustfmt.toml.
Replaced machine-specific MSVC linker overrides in .cargo/config.toml with standard Cargo MSVC toolchain auto-discovery.

Fixed phantom E_POINTER error cascades from null PWSTR values in StringIterator (OPC-BUG-001).
Prevented potential silent array truncation in OPC DA tag read/write handling.