hellobertrand/zxc v0.6.3

ZXC v0.6.3

on GitHub

Release Notes

This release expands the library's reach with with official Python bindings, and Rust bindings, shared library support and significant CI/CD improvements. This release focuses on making ZXC accessible to more developers across more languages and build systems, while strengthening testing and security analysis coverage.

Thanks

Special thanks to @nuberchardzer1 for implementing and adding the Python bindings.

Changes

Shared Library Support

• New BUILD_SHARED_LIBS CMake option to build ZXC as a shared library (.so / .dylib / .dll)
• Proper symbol visibility control via zxc_export.h: only public API symbols are exported
• CMake package config (find_package(zxc)) and pkg-config support for easy integration

Python Wrapper

• Full Python wrapper with buffer API (compress, decompress, get_decompressed_size) and streaming API (stream_compress, stream_decompress)
• Built with scikit-build-core + CMake, version managed by setuptools_scm
• Pre-built wheels for Linux (x86_64, aarch64), macOS (universal), Windows (AMD64, ARM64)
• Python 3.10–3.13 support
• Comprehensive test suite with pytest (buffer round-trip, streaming, corruption detection, edge cases)
• Automated publishing to PyPI via trusted publishing (OIDC)
• Fixed wheel packaging: Added wheel.packages = ["src/zxc"] to pyproject.toml to ensure init.py is included in wheels. Previously, only the C extension was packaged, causing AttributeError on all wrapper functions.
• Fixed stream functions: Added missing return statements in pyzxc_stream_compress and pyzxc_stream_decompress, resolving SystemError: returned NULL without setting an exception.
• Improved cross-platform support (Linux x86_64/ARM64, macOS ARM64/Intel, Windows AMD64/ARM64).

Rust Wrapper

• Crate names updated to zxc-compress and zxc-compress-sys for consistency with the Python package
• CI/CD: cross-platform testing (Linux, macOS, Windows) with dry-run validation before publishing
• Marked unsafe libc calls (dup, close) in Windows-specific code with proper unsafe blocks.
• Optimized build.rs configuration.
• Improved cross-platform file handle management.

Core Library

• Enabled ARM64 NEON intrinsics detection for MSVC (_M_ARM64 check).
• Improved architecture-specific compilation.

Testing & Security

• Added edge case tests for the C library (boundary conditions, error paths)
• Improved CI matrix coverage across all platforms

Full Changelog: v0.6.2...v0.6.3