chore: update CHANGELOG.md for version 2.0.0

CHANGELOG.md

@@ -5,6 +5,108 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [2.0.0] - 2025-10-25
+
+### Breaking Changes
+
+- **REST API Integration**: Core architecture modified to support REST API functionality
+  - Changes to internal APIs for download management and tracking
+  - Title and track classes updated with API integration points
+  - Core component interfaces modified for queue management support
+- **Configuration Changes**: New required configuration options for API and enhanced features
+  - Added `simkl_client_id` now required for Simkl functionality
+  - Service-specific configuration override structure introduced
+  - Debug logging configuration options added
+- **Forced Subtitles**: Behavior change for forced subtitle inclusion
+  - Forced subs no longer auto-included, requires explicit `--forced-subs` flag
+
+### Added
+
+- **REST API Server**: Complete download management via REST API (early development)
+  - Implemented download queue management and worker system
+  - Added OpenAPI/Swagger documentation for easy API exploration
+  - Included download progress tracking and status endpoints
+  - API authentication and comprehensive error handling
+  - Updated core components to support API integration
+  - Early development work with more changes planned
+- **CustomRemoteCDM**: Highly configurable custom CDM API support
+  - Support for third-party CDM API providers with maximum configurability
+  - Full configuration through YAML without code changes
+  - Addresses GitHub issue #26 for flexible CDM integration
+- **WindscribeVPN Proxy Provider**: New VPN provider support
+  - Added WindscribeVPN following NordVPN and SurfsharkVPN patterns
+  - Fixes GitHub issue #29
+- **Latest Episode Download**: New `--latest-episode` CLI option
+  - `-le, --latest-episode` flag to download only the most recent episode
+  - Automatically selects the single most recent episode regardless of season
+  - Fixes GitHub issue #28
+- **Service-Specific Configuration Overrides**: Per-service fine-tuned control
+  - Support for per-service configuration overrides in YAML
+  - Fine-tuned control of downloader and command options per service
+  - Fixes GitHub issue #13
+- **Comprehensive JSON Debug Logging**: Structured logging for troubleshooting
+  - Binary toggle via `--debug` flag or `debug: true` in config
+  - JSON Lines (.jsonl) format for easy parsing and analysis
+  - Comprehensive logging of all operations (session info, CLI params, CDM details, auth status, title/track metadata, DRM operations, vault queries)
+  - Configurable key logging via `debug_keys` option with smart redaction
+  - Error logging for all critical operations
+  - Removed old text logging system
+- **curl_cffi Retry Handler**: Enhanced session reliability
+  - Added automatic retry mechanism to curl_cffi Session
+  - Improved download reliability with configurable retries
+- **Simkl API Configuration**: New API key support
+  - Added `simkl_client_id` configuration option
+  - Simkl now requires client_id from https://simkl.com/settings/developer/
+
+### Changed
+
+- **Binary Search Enhancement**: Improved binary discovery
+  - Refactored to search for binaries in root of binary folder or subfolder named after the binary
+  - Better organization of binary dependencies
+- **Type Annotations**: Modernized to PEP 604 syntax
+  - Updated session.py type annotations to use modern Python syntax
+  - Improved code readability and type checking
+
+### Fixed
+
+- **Config Directory Support**: Cross-platform user config directory support
+  - Fixed config loading to properly support user config directories across all platforms
+  - Fixes GitHub issue #23
+- **HYBRID Mode Validation**: Pre-download validation for hybrid processing
+  - Added validation to check both HDR10 and DV tracks are available before download
+  - Prevents wasted downloads when hybrid processing would fail
+- **TMDB/Simkl API Keys**: Graceful handling of missing API keys
+  - Improved error handling when TMDB or Simkl API keys are not configured
+  - Better user messaging for API configuration requirements
+- **Forced Subtitles Behavior**: Correct forced subtitle filtering
+  - Fixed forced subtitles being incorrectly included without `--forced-subs` flag
+  - Forced subs now only included when explicitly requested
+- **Font Attachment Constructor**: Fixed ASS/SSA font attachment
+  - Use keyword arguments for Attachment constructor in font attachment
+  - Fixes "Invalid URL: No scheme supplied" error
+  - Fixes GitHub issue #24
+- **Binary Subdirectory Checking**: Enhanced binary location discovery (by @TPD94, PR #19)
+  - Updated binaries.py to check subdirectories in binaries folders named after the binary
+  - Improved binary detection and loading
+- **HLS Manifest Processing**: Minor HLS parser fix (by @TPD94, PR #19)
+- **lxml and pyplayready**: Updated dependencies (by @Sp5rky)
+  - Updated lxml constraint and pyplayready import path for compatibility
+
+### Refactored
+
+- **Import Cleanup**: Removed unused imports
+  - Removed unused mypy import from binaries.py
+  - Fixed import ordering in API download_manager and handlers
+
+### Contributors
+
+This release includes contributions from:
+
+- @Sp5rky - REST API server implementation, dependency updates
+- @stabbedbybrick - curl_cffi retry handler (PR #31)
+- @TPD94 - Binary search enhancements, manifest parser fixes (PR #19)
+- @scene (Andy) - Core features, configuration system, bug fixes
+
 ## [1.4.8] - 2025-10-08
 
 ### Added