# Changelog
## 0.1.0
Initial release.
### Features
- **PE/COFF parsing** — Parse DLL/XLL files, extract architecture, export tables, and metadata via the `object` crate
- **Export verification** — Verify expected exports are present, with case-sensitive and case-insensitive matching
- **Export diffing** — Compare export lists between two DLL/XLL files
- **XLL metadata** — Extract XLL-specific information (entry points, export lists, architecture)
- **XLL validation** — Check whether a file is a valid XLL (has `xlAutoOpen` and `xlAutoFree12`)
- **Windows registry integration** — Find, register, and unregister XLLs in Excel's registry keys (Windows only)
- **Build script helpers** — `verify_exports_in_build()` and `rerun_if_dll_changed()` for use in `build.rs`
- **CLI tool** (`xllutils`) — Subcommands: `list-exports`, `verify`, `xll-info`, `diff`, `find-xlls`
### Feature Flags
- `serde` — JSON serialization for all public types
- `cli` — Builds the `xllutils` binary
- `build` — Build script helpers