v1.2.0 – SEO Architecture & Dedicated Format Routes

October 2026

Duplicate Route Resolution: Implemented permanent 301 redirects for legacy URLs and established clean canonical slugs (/youtube-to-mp3, /youtube-video-downloader, /bulk-youtube-to-mp3, /bulk-youtube-video-downloader).
Dedicated Format Tool Pages: Added dedicated landing pages for MP4, WAV, M4A, FLAC, and 4K UHD.
Differentiator Hubs: Launched guides for ad-free media conversion, download safety checklists, and supported platform matrices.
Structured JSON-LD Data: Integrated WebApplication, BreadcrumbList, and FAQPage schemas.
Fair Use Policy & HTML Sitemap: Published comprehensive copyright guidance and a complete human/crawler site map.

v1.1.0 – Multi-Track Batch Engine & ZIP Packaging

September 2026

Bulk Processing: Added support for queuing up to 20 URLs at once with asynchronous background worker threads.
ZIP Export: Built 1-click ZIP archive packaging for completed batch jobs.
SSRF Defense Engine: Hardened server security with strict hostname validation and private IP address shielding.
SQLite Thread Safety: Upgraded queue persistence to SQLite WAL mode to support high concurrent write throughput.

August 2026

Core Engine: Integrated yt-dlp stream extraction with FFmpeg DASH multiplexing.
Formats: Support for MP3, M4A, 720p, 1080p, and 4K downloads.
24-Hour Auto-Purge: Background janitor thread to permanently delete temporary files after 24 hours.
Dark UI System: Bespoke Vanilla CSS with aurora mesh background and micro-animations.