5.3.0

Features

• --merge-video: merge video language variants into one MKV per (resolution, range, codec) group
• Native ExpressVPN HTTPS proxy provider (full OAuth PKCE flow, no external tools)
• Proton VPN proxy provider with country/city/server-number selection, plus ProtonVPN TV-code login
• Load service plugins from git repos (clone + TTL-pull cache, refresh-services command, dirty-clone guard)
• Python 3.14 support (supported range widened to 3.11-3.14)
• Automatic Firefox cookie and localStorage extraction
• Nested directories in folder templates (/ treated as path separator)
• air_date for date-based episode naming (daily/sports content named by date instead of SxxExx)
• Per-vault network timeout for remote API/HTTP vaults
• Richer API job progress: active-track segment counts, transfer speed, title description/date/cover_url

Bug Fixes

• drm: don't switch to a mismatched CDM type during licensing; raise a clear error instead
• config: match per-service cdm keys case-insensitively
• dl: apply per-service decryption tool override before decrypt
• hls: stream segment merges to avoid OOM on large (multi-GB) tracks
• console: pause active live/spinner contexts during terminal input so prompts stay visible
• output: treat both / and \ as folder separators on any OS
• env: only resolve Path items in directory lists (git repo specs pass through)

Performance & Changes

• perf(hls): rename single decrypted range instead of re-copying a full track
• perf(tracks): skip redundant DV/VUI bitstream passes when VUI already matches range
• api: collapse route registration, dedup handlers, remove dead serve/remote code paths

---

Full Changelog: https://github.com/unshackle-dl/unshackle/blob/main/CHANGELOG.md

5.1.0

Features

• ip-info: Consolidate IP lookup, add ipinfo.io token support
• dl: Cache content keys in-memory to skip duplicate license requests
• mux: Add muxing.default_language to override default track per type
• hls: Detect DV-composite tracks and restore signaling post-mux
• video: Normalize SPS VUI to match manifest-derived range
• api: Sync /api/download with dl CLI flags and add serve.* defaults
• vaults: Tolerate vault failures during key get/add
• tracks: Configurable audio codec priority for tie-breaking
• dl: Live countdown for --slow delay
• dl: Gate s_lang/a_lang miss behind --best-available
• dl: Add real bitrate probing (-rvb/-rab)
• import: Reconstruct downloads from an --export sidecar
• naming: Per-service title_map remapping
• import: Include cover-art attachments in --export/--import

Bug Fixes

• manifests: Clean stale .!dev resume markers before merge
• sanitize: Preserve parentheses, strip unidecode bracket artifacts
• tracks: Honor --worst in hybrid range selection
• dl: Re-pick DV/HDR10 when HYBRID falls back under best_available
• proxies/nordvpn: Use *.proxy.nordvpn.com for HTTPS proxy
• template_formatter: Preserve dash separator around empty conditional
• dl: Prefer Atmos in -l best/all language selection
• title: Detect Atmos across all audio tracks for filename template
• title: Use original-language audio for filename metadata
• service: Render request_input prompt via rich console
• titles: Normalize odd resolutions in filename quality token
• api: Propagate Click default=None through service instantiation
• api: Load real CDM for service init in list/session/download flows
• vaults: Enable WAL on SQLite vault to fix concurrent locks
• hybrid: Correct static L6 source and reset stale L5 active area
• cli: Report broken command/service loads once and cleanly
• hls: Resolve per-rendition KID in no-EXT-X-KEY fallback
• dash: Inherit SegmentTemplate attributes across AdaptationSet/Representation
• dl: Mux all requested ranges and select highest DV alongside hybrid
• session: Proxy auth on http targets and string params support

Documentation

• Update docs to match current codebase
• output: Document muxing.default_language override
• Simplify README with demo and requirements

Changes

• routes, subtitle, track: Improve code readability by formatting list structures
• hybrid: Extract dovi_tool and run_step helpers
• ip_info: Simplify lookup and trim cache
• example: Showcase full unshackle feature surface
• dl: Declare hybrid_base_only flag and extract standalone mux helper
• Remove dead aria2c and n_m3u8dl_re downloader code

Maintenance

• pre-commit: Update hook versions in .pre-commit-config.yaml

4.0.0

Features

• hybrid: Add L5 active area and dynamic L6 luminance metadata
• debug: Add JSONL debug logging to decryption, muxing, and all downloaders
• debug: Log binary tool versions at session start
• dl: Add --repack flag to insert REPACK tag in output filenames
• core: Add TrackRequest system for multi-codec/multi-range support
• dl: Add --output option to override download directory
• tracks: Add edition tags to output filenames
• templates: [breaking] Add customizable output filename templates
• templates: Add configurable language tagging rule engine
• Update unshackle version to 4.0.0
• dl: Add --animeapi and --enrich options for anime metadata and tagging
• dl: Add skip messages for --no-audio and --no-chapters flags
• dl: Extract closed captions from HLS manifests and improve CC extraction
• dl: Add --worst flag and SHIELD OkHttp fingerprint preset

Bug Fixes

• n_m3u8dl_re: Pass all content keys for DualKey DRM decryption
• hybrid: Skip bitrate filter for DV tracks in HYBRID mode
• attachment: Sanitize filenames with illegal Windows characters
• hybrid: Accept HDR10+ tracks as valid base layer for HYBRID mode
• dl: Allow selection of audio tracks for 'all' languages in addition to 'best'
• dl: Overwrite existing files on re-download and use atomic replace
• dl: Handle cross-device moves when temp and downloads differ
• track: Fallback to requests downloader from n_m3u8dl_re for unsupported track types
• n_m3u8dl_re: Disable segment count validation for duration-based DASH
• Correct formatting and add missing newlines in selector and EXAMPLE service
• dependencies: Update pyplayready version to 0.8.3 and adjust dependencies
• drm: Update PlayReady KID extraction for pyplayready 0.8.3 compatibility
• api: Resolve Sentinel serialization, missing params, and add search endpoint
• dash: Pass period_filter to n_m3u8dl_re via filtered MPD file
• title: Add HDR Vivid Format HDR Tag
• ism: Prevent duplicate track IDs for audio tracks with same lang/codec/bitrate
• aria2c: Correct progress bar tracking for HLS downloads
• dl: Filter CC subtitle languages with --s-lang and extract all manifest CCs

Documentation

• Update and correct configuration documentation

Changes

• hybrid: Replace log.info with console status and add JSONL debug logging
• dl: Remove legacy multi-fetch loop for unmigrated services
• example: Migrate EXAMPLE service to track_request pattern
• providers: Extract metadata providers into modular system

3.0.0

[3.0.0] - 2026-02-15

Features

• Merge upstream dev branch
• titles: Use track source attribute for service name in filenames
• debug: Add download output verification logging
• Gluetun VPN integration and remote service enhancements
• gluetun: Improve VPN connection display and Windscribe support
• serve: Add PlayReady CDM support alongside Widevine
• cdm: Add remote PlayReady CDM support via pyplayready RemoteCdm
• env: Add ML-Worker binary for DRM licensing
• video: Detect interlaced scan type from MPD manifests
• drm: Add MonaLisa DRM support to core infrastructure
• audio: Codec lists and split muxing
• proxy: Add specific server selection for WindscribeVPN
• cdm: Normalize CDM detection for local and remote implementations
• HLS: Improve audio codec handling with error handling for codec extraction
• tracks: Prioritize Atmos audio tracks over higher bitrate non-Atmos

Bug Fixes

• subs: Update SubtitleEdit CLI syntax and respect conversion_method
• n_m3u8dl_re: Include language in DASH audio track selection
• hls: Prefer media playlist keys over session keys for accurate KID matching
• deps: Upgrade vulnerable dependencies for security alerts
• serve: Use correct pywidevine users config format
• cdm: Correct error key casing in Decrypt Labs API response parsing
• api: Validate Bearer prefix before extracting API key
• serve: Correct PlayReady RemoteCDM server validation
• n_m3u8dl_re: Remove duplicate --write-meta-json argument causing download failures
• manifests: Correct DRM type selection for remote PlayReady CDMs
• proxies: Fixes WindscribeVPN server authentication
• subs: Route pycaption-unsupported formats to pysubs2 in auto mode
• proxy: Remove regional restrictions from WindscribeVPN
• proxy: Collect servers from all locations in WindscribeVPN
• downloader: Correct progress bar tracking for segmented downloads
• binaries: Search subdirectories for binary files
• dash: Handle high startNumber in SegmentTimeline for DVR manifests
• drm: Hide Shaka Packager message for MonaLisa decryption
• dash: Add CENC namespace support for PSSH extraction
• dash: Preserve MPD DRM instead of overwriting from init segment
• subtitles: Preserve sidecar originals
• mux: Avoid audio codec suffix on split-audio outputs
• dl: Prevent attachment downloads during --skip-dl
• progress: Force track bar completion on terminal states
• progress: Bind per-track bars and force terminal completion
• dl: Keep descriptive and standard audio for requested langs
• dl: Always clean up hybrid temp hevc outputs
• hls: Finalize n_m3u8dl_re outputs
• downloader: Restore requests progress for single-url downloads
• dl: Invert audio codec suffixing when splitting
• dl: Support snake_case keys for RemoteCdm
• aria2c: Warn on config mismatch and wait for RPC ready
• serve: [breaking] Make PlayReady users config consistently a mapping
• dl: Preserve proxy_query selector (not resolved URI)
• gluetun: Stop leaking proxy/vpn secrets to process list
• monalisa: Avoid leaking secrets and add worker safety
• dl: Avoid selecting all variants when multiple audio codecs requested
• hls: Keep range offset numeric and align MonaLisa licensing
• titles: Remove trailing space from HDR dynamic range label
• config: Normalize playready_remote remote_cdm keys
• titles: Avoid None/double spaces in HDR tokens
• naming: Keep technical tokens with scene_naming off
• api: Log PSSH extraction failures
• proxies: Harden surfshark and windscribe selection
• service: Redact proxy credentials in logs
• monalisa: Harden wasm calls and license handling
• hls: Remove no-op encryption_data reassignment
• serve: Default PlayReady access to none
• tracks: Close temp session and improve path type error
• main: Update copyright year dynamically in version display

Reverts

• monalisa: Pass key via argv again

Documentation

• Add configuration documentation WIP
• changelog: Add 2.4.0 release notes
• changelog: Update cliff config and regenerate changelog
• changelog: Complete 2.4.0 notes
• config: Clarify sdh_method uses subtitle-filter

Performance Improvements

• aria2c: Improve download performance with singleton manager

Changes

• remote_auth: Remove unused requests.Session
• Remove remote-service code until feature is more complete

Maintenance

• api: Remove remote services

Chore

• release: [breaking] Bump version to 3.0.0

2.3.0

[2.3.0] - 2026-01-18

Added

• Unicode Filenames Option: New unicode_filenames config option to preserve native characters
  • Allows disabling ASCII transliteration in filenames
  • Preserves Korean, Japanese, Chinese, and other native language characters
  • Closes #49

Fixed

• WebVTT Cue Handling: Handle WebVTT cue identifiers and overlapping multi-line cues
  • Added detection and sanitization for cue identifiers (Q0, Q1, etc.) before timing lines
  • Added merging of overlapping cues with different line positions into multi-line subtitles
  • Fixes parsing issues with pysubs2/pycaption on certain WebVTT files
• Widevine PSSH Filtering: Filter Widevine PSSH by system ID instead of sorting
  • Fixes KeyError crash when unsupported DRM systems are present in init segments
• TTML Negative Values: Handle negative values in multi-value TTML attributes
  • Fixes pycaption parse errors for attributes like tts:extent="-5% 7.5%"
  • Closes #47
• ASS Font Names: Strip whitespace from ASS font names
  • Handles ASS subtitle files with spaces after commas in Style definitions
  • Fixes #57
• Shaka-Packager Error Messages: Include shaka-packager binary path in error messages
• N_m3u8DL-RE Merge and Decryption: Handle merge and decryption properly
  • Prevents audio corruption ("Box 'OG 2' size is too large") with DASH manifests
  • Fixes duplicate init segment writing when using N_m3u8DL-RE
• DASH Placeholder KIDs: Handle placeholder KIDs and improve DRM init from segments
  • Detects and replaces placeholder/test KIDs in Widevine PSSH
  • Adds CENC namespace support for kid/default_KID attributes
• PlayReady PSSH Comparison: Correct PSSH system ID comparison in PlayReady
  • Removes erroneous .bytes accessor from PSSH.SYSTEM_ID comparisons

---

Full Changelog: https://github.com/unshackle-dl/unshackle/blob/main/CHANGELOG.md

2.2.0

[2.2.0] - 2026-01-15

Added

• CDM-Aware PlayReady Fallback Detection: Intelligent DRM fallback based on selected CDM
  • Adds PlayReady PSSH/KID extraction from track and init data with CDM-aware ordering
  • When PlayReady CDM is selected, tries PlayReady first then falls back to Widevine
  • When Widevine CDM is selected (default), tries Widevine first then falls back to PlayReady
• Comprehensive Debug Logging: Enhanced debug logging for downloaders and muxing

Fixed

• Hybrid DV+HDR10 Filename Detection: Fixed HDR10 detection in hybrid Dolby Vision filenames
• Vault Adaptive Batch Sizing: Improved bulk key operations with adaptive batch sizing
• Test Command Improvements: Enhanced test command error detection and sorting

---

Full Changelog: https://github.com/unshackle-dl/unshackle/blob/main/CHANGELOG.md

2.1.0

Added

• Per-Track Quality-Based CDM Selection: Dynamic CDM switching during runtime DRM operations
  • Enables quality-based CDM selection during runtime DRM switching
  • Different CDMs can be used for different video quality levels within the same download session
  • Example: Use Widevine L3 for SD/HD and PlayReady SL3 for 4K content
• Enhanced Track Export: Improved export functionality with additional metadata
  • Added URL field to track export for easier identification
  • Added descriptor information in export output
  • Keys now exported in hex-formatted strings

Changed

• Dependencies: Upgraded to latest compatible versions
  • Updated various dependencies to their latest versions

Fixed

• Attachment Preservation: Fixed attachments being dropped during track filtering
  • Attachments (screenshots, fonts) were being lost when track list was rebuilt
  • Fixes image files remaining in temp directory after muxing
• DASH BaseURL Resolution: Added AdaptationSet-level BaseURL support per DASH spec
  • URL resolution chain now properly follows: MPD → Period → AdaptationSet → Representation
• WindscribeVPN Region Support: Restricted to supported regions with proper error handling
  • Added error handling for unsupported regions in get_proxy method
  • Prevents cryptic errors when using unsupported region codes
• Filename Sanitization: Fixed space-hyphen-space handling in filenames
  • Pre-process space-hyphen-space patterns (e.g., "Title - Episode") before other replacements
  • Made space-hyphen-space handling conditional on scene_naming setting
  • Addresses PR #44 by fixing the root cause
• CICP Enum Values: Corrected values to match ITU-T H.273 specification
  • Added Primaries.Unspecified (value 2) per H.273 spec
  • Renamed Primaries/Transfer value 0 from Unspecified to Reserved for spec accuracy
  • Simplified Transfer value 2 from Unspecified_Image to Unspecified
  • Verified against ITU-T H.273, ISO/IEC 23091-2, H.264/H.265 specs, and FFmpeg enums
• HLS Byte Range Parsing: Fixed TypeError in range_offset conversion
  • Converted range_offset to int to prevent TypeError in calculate_byte_range
• pyplayready Compatibility: Pinned to <0.7 to avoid KID extraction bug

---

Full Changelog: https://github.com/unshackle-dl/unshackle/blob/main/CHANGELOG.md

2.0.0

[2.0.0] - 2025-11-10

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
  • Fixes #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
• Video Track Exclusion: New --no-video CLI option
  • -nv, --no-video flag to skip downloading video tracks
  • Allows downloading only audio, subtitles, attachments, and chapters
  • Useful for audio-only or subtitle extraction workflows
  • Fixes GitHub issue #39
• 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/
• Custom Session Fingerprints: Enhanced browser impersonation capabilities
  • Added custom fingerprint and preset support for better service compatibility
  • Configurable fingerprint presets for different device types
  • Improved success rate with services using advanced bot detection
• TMDB and Simkl Metadata Caching: Enhanced title cache system
  • Added metadata caching to title cache to reduce API calls
  • Caches movie/show metadata alongside title information
  • Improves performance for repeated title lookups and reduces API rate limiting
• API Enhancements: Improved REST API functionality
  • Added default parameter handling for better request processing
  • Added URL field to services endpoint response for easier service identification
  • Complete API enhancements for production readiness
  • Improved error responses with better detail and debugging information

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

• Audio Description Track Support: Added option to download audio description tracks
  • Added --audio-description/-ad flag to optionally include descriptive audio tracks
  • Previously, audio description tracks were always filtered out
  • Users can now choose to download AD tracks when needed
  • Fixes GitHub issue #33
• 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
  • 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
• lxml and pyplayready: Updated dependencies
  • Updated lxml constraint and pyplayready import path for compatibility
• DASH Segment Calculation: Corrected segment handling
  • Fixed segment count calculation for DASH manifests with startNumber=0
  • Ensures accurate segment processing for all DASH manifest configurations
  • Prevents off-by-one errors in segment downloads
• HDR Detection and Naming: Comprehensive HDR format support
  • Improved HDR detection with comprehensive transfer characteristics checks
  • Added hybrid DV+HDR10 support for accurate file naming
  • Better identification of HDR formats across different streaming services
  • More accurate HDR/DV detection in filename generation
• Subtitle Processing: VTT subtitle handling improvements
  • Resolved SDH (Subtitles for Deaf and Hard of hearing) stripping crash when processing VTT files
  • More robust subtitle processing pipeline with better error handling
  • Fixes crashes when filtering specific VTT subtitle formats
• DRM Processing: Enhanced encoding handling
  • Added explicit UTF-8 encoding to mp4decrypt subprocess calls
  • Prevents encoding issues on systems with non-UTF-8 default encodings
  • Improves cross-platform compatibility for Windows and some Linux configurations
• Session Fingerprints: Updated OkHttp presets
  • Updated OkHttp fingerprint presets for better Android TV compatibility
  • Improved success rate with services using fingerprint-based detection

Documentation

• GitHub Issue Templates: Enhanced issue reporting
  • Improved bug report template with better structure and required fields
  • Enhanced feature request template for clearer specifications
  • Added helpful guidance for contributors to provide complete information

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)
• @stabbedbybrick - n_m3u8dl-re refactor (PR #38)
• @TPD94 - Binary search enhancements, manifest parser fixes (PR #19)
• @ scene (Andy) - Core features, configuration system, bug fixes

---

Full Changelog: https://github.com/unshackle-dl/unshackle/blob/main/CHANGELOG.md

1.4.8

[1.4.8] - 2025-10-08

Added

• Exact Language Matching: New --exact-lang flag for precise language matching
  • Enables strict language code matching without fallbacks
• No-Mux Flag: New --no-mux flag to skip muxing tracks into container files
  • Useful for keeping individual track files separate
• DecryptLabs API Integration for HTTP Vault: Enhanced vault support
  • Added DecryptLabs API support to HTTP vault for improved key retrieval
• AC4 Audio Codec Support: Enhanced audio format handling
  • Added AC4 codec support in Audio class with updated mime/profile handling
• pysubs2 Subtitle Conversion: Extended subtitle format support
  • Added pysubs2 subtitle conversion with extended format support
  • Configurable conversion method in configuration

Changed

• Audio Track Sorting: Optimized audio track selection logic
  • Improved audio track sorting by grouping descriptive tracks and sorting by bitrate
  • Better identification of ATMOS and DD+ as highest quality for filenaming
• pyplayready Update: Upgraded to version 0.6.3
  • Updated import paths to resolve compatibility issues
  • Fixed lxml constraints for better dependency management
• pysubs2 Conversion Method: Moved from auto to manual configuration
  • pysubs2 no longer auto-selected during testing phase

Fixed

• Remote CDM: Fixed curl_cffi compatibility
  • Added curl_cffi to instance checks in RemoteCDM
• Temporary File Handling: Improved encoding handling
  • Specified UTF-8 encoding when opening temporary files

Reverted

• tinycss SyntaxWarning Suppression: Removed ineffective warning filter
  • Reverted warnings filter that didn't work as expected for suppressing tinycss warnings

Full Changelog: 1.4.7...1.4.8

1.4.7

[1.4.7] - 2025-09-25

Added

• curl_cffi Session Support: Enhanced anti-bot protection with browser impersonation
  • Added new session utility with curl_cffi support for bypassing anti-bot measures
  • Browser impersonation support for Chrome, Firefox, and Safari user agents
  • Full backward compatibility with requests.Session maintained
  • Suppressed HTTPS proxy warnings for improved user experience
• Download Retry Functionality: Configurable retry mechanism for failed downloads
  • Added retry count option to download function for improved reliability
• Subtitle Requirements Options: Enhanced subtitle download control
  • Added options for required subtitles in download command
  • Better control over subtitle track selection and requirements
• Quality Selection Enhancement: Improved quality selection options
  • Added best available quality option in download command for optimal track selection
• DecryptLabs API Integration: Enhanced remote CDM configuration
  • Added decrypt_labs_api_key to Config initialization for better API integration

Changed

• Manifest Parser Updates: Enhanced compatibility across all parsers
  • Updated DASH, HLS, ISM, and M3U8 parsers to accept curl_cffi sessions
  • Improved cookie handling compatibility between requests and curl_cffi
• Logging Improvements: Reduced log verbosity for better user experience
  • Changed duplicate track log level to debug to reduce console noise
  • Dynamic CDM selection messages moved to debug-only output

Fixed

• Remote CDM Reuse: Fixed KeyError in dynamic CDM selection
  • Prevents KeyError when reusing remote CDMs in dynamic selection process
  • Creates copy of CDM dictionary before modification to prevent configuration mutation
  • Allows same CDM to be selected multiple times within session without errors

Full Changelog: 1.4.6...1.4.7