# Changelog
All notable changes to Content Core will be documented in this file.
The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
## [Unreleased]
## [1.10.0] - 2026-01-16
### Added
- **HTTP/HTTPS Proxy Support** - Route all network requests through a configured proxy
- 4-level configuration priority: Per-request > Programmatic > Environment variable > YAML config
- Environment variables: `CCORE_HTTP_PROXY`, `HTTP_PROXY`, `HTTPS_PROXY`
- Programmatic API: `set_proxy()`, `clear_proxy()`, `get_proxy()`
- Per-request override via `proxy` parameter in `ProcessSourceState`
- Bypass list support via `NO_PROXY` environment variable
- Full proxy support for: aiohttp requests, Esperanto LLM/STT models, Crawl4AI, pytubefix, youtube-transcript-api
- Warning logged when using Firecrawl (no client-side proxy support)
- Pure Python file type detection via the new `FileDetector` class
- Comprehensive file signature detection for 25+ file formats
- Smart detection for ZIP-based formats (DOCX, XLSX, PPTX, EPUB)
- Custom audio model configuration - override speech-to-text provider and model at runtime
- Pass `audio_provider` and `audio_model` parameters through `extract_content()` API
- Supports any provider/model combination available through Esperanto library
- Maintains full backward compatibility - existing code works unchanged
- Includes validation with helpful warnings and error messages
### Changed
- File type detection now uses pure Python implementation instead of libmagic
- Improved cross-platform compatibility - no system dependencies required
### Removed
- Dependency on `python-magic` and `python-magic-bin`
- System requirement for libmagic library
### Technical Details
- New proxy configuration module in `content_core/config.py`
- Proxy support integrated into all network-making components
- Replaced libmagic dependency with custom `FileDetector` implementation
- File detection based on binary signatures and content analysis
- Maintains same API surface - no breaking changes for users
- Significantly simplified installation process across all platforms
## Previous Releases
For releases prior to this changelog, please see the [GitHub releases page](https://github.com/lfnovo/content-core/releases).
