YT Media Downloader v1.3.0

What is new in this release:
- Interactive Playlist Selector: New modal overlay to pick specific videos from any YouTube playlist, with quick Select All and Deselect All controls.
- Anti-Bot Batch Downloader: Sequential background download queue with smart request rate throttling to prevent HTTP 429 rate limit bans during playlist downloads.
- PO-Token Protection & 4K/1080p Support: Integrated PO-Token anti-bot engine and multi-client fallback (android, ios, mweb, web) to unlock 1080p60, 720p60, and 4K resolutions without 360p quality caps.
- Real Filesize Estimation Engine: Combined video and audio stream size estimation based on bitrate and duration, resolving 0 MB labels on DASH videos.
- Automatic Navigation State Reset: Selection data clears automatically when navigating between videos without interrupting active background downloads.
- Complete 9-Language i18n Audit: 100% translation coverage across English, Spanish, Portuguese, French, German, Italian, Russian, Japanese, and Chinese using explicit element ID selectors.

What is new in version 1.2.9:
- Added trimming scissors tool and visual range overlay support for YouTube Shorts.
- Scissors button in Shorts now unlocks only after clicking Download, matching standard video player behavior.
- Redesigned top floating cut preview indicator with centered alignment and localized text across all 9 supported languages.
- Restyled welcome and changelog page into a single-view layout without vertical scrolling.

Version 1.2.8 (Bugfix Release):
- Fixed standalone audio download format initialization (MP3/M4A/WAV/FLAC) when requesting audio extractions from the toolbar interface.
- Improved backend compatibility and fallback handling with the local companion server engine.
- Minor UI versioning and internationalization updates across supported languages.

What's New in Release v1.2.7

Important Security & Privacy Upgrade:
- Zero-Disk RAM Security Model: Player cookies are processed 100% in RAM memory streams with zero disk persistence.
- Account Protection: Master account session keys (SID, HSID, SSID, APISID, SAPISID) are strictly discarded before transmission.
- Automatic Cleanup: The Companion Server automatically purges legacy cookie files on startup.

New Features & Aesthetic Improvements:
- Direct "Save As..." Workflow: Clicking Download Video or Download Audio directly prompts the native OS file picker window. It remembers your last selected destination folder.
- Chapter Selection Modal: Replaced old sliders/dropdowns with a sleek popup overlay featuring Select All and Deselect All buttons.
- YouTube Player Animations: Center-screen animated badges (A, B, and Loop arrows) appear on the player while trimming videos.