OpenTune v4.0.3

OpenTune v4.0.3

Lineage, Copyright & Open Source Attribution

OpenTune is an open-source collaborative project built upon the foundation of incredible open-source developers under the GNU General Public License v3.0 (GPL-3.0):

• ArchiveTune: Core upstream project created and copyrighted by Rukamori (@rukamori) (ArchiveTuneApp/ArchiveTune), providing Spotify integration, Canvas models, and playback error handling.
• InnerTune: Foundational YouTube Music client architecture created and copyrighted by Zion Huang (@z-huang) (z-huang/InnerTune).
• OpenTune Authors & Maintainers:
  • Arturo Cervantes (@Arturo254): Original OpenTune author and design contributor.
  • Ahmed Raafat (@Erorr40): Current project maintainer, Automix engine, performance optimization, and release coordinator.

All original copyright notices from upstream projects are preserved, respected, and acknowledged in full compliance with GPL-3.0. For complete attribution details, see ATTRIBUTION.md and NOTICE.

What's New in v4.0.3

• Spotify-Style Equal-Power Mixing Mode: Replaced linear crossfading with an equal-power sinusoidal curve (sin²(θ) + cos²(θ) = 1) to eliminate perceived acoustic volume dips between outgoing and incoming tracks.
• Continuous 0-12s Squiggly Slider: Ultra-fluid slider with haptic feedback ticks for micro-precision duration adjustment.
• 5 Quick-Select Preset Pills: Instant switching between Off, 3s Subtle, 6s Standard, 9s Club, and 12s Flow.
• Smart Automix Engine: Dynamic DJ-style auto-mixing intelligently bridging consecutive songs with dynamic transitions.
• Album Gapless Playback Bypass: Intelligently disables crossfading when consecutive tracks belong to the same album, preserving live and conceptual album transitions as intended by the artist.
• Liquid Frosted Glass Visuals: Real-time translucent backdrop sampling with specular highlights and robust CornerBasedShape fallbacks across action bottom sheets, floating navigation toolbars, and top bars.
• Fix Preference Crash: Resolved nested vertically scrollable infinite constraint crash in ExpressiveListBottomSheet by adopting unified LazyColumn container.
• Coil 3 Memory Caching: Upgraded to 25% JVM heap allocation with strong LRU references, delivering instantaneous artwork loading without garbage collection stutters.
• Fluid 120Hz Scrolling: Explicit stable keys integrated on all dynamic lazy collection feeds across Explore, Library, and Player components.
• Enhanced About & Attribution Screen: Dedicated upstream attribution cards honoring ArchiveTune (@rukamori) and InnerTune (@z-huang), plus refreshed social links.
• Multi-Scheme APK Signing: Full support for APK Signature Scheme v2 and v3 for maximum installation reliability and security.
• Modernized UI Terminology: Modernized audio and playback terminology across all preference screens and bottom sheets.
• Automated Verification: Comprehensive unit, adversarial stress, and end-to-end test suites passing with 100% success rate.

Downloads

Package	Architecture	Description	Download	SHA-256 Checksum
Universal APK	All devices (arm64, armeabi-v7a, x86, x86_64)	Compatible with any Android device	app-universal-release.apk	bb1cd662a56cc8394a01ad544903c2bb346d70b3e47df20450de77de1bc59319
ARM64 APK	arm64-v8a	Optimized, smaller binary for modern 64-bit Android phones	app-arm64-release.apk	695078cf523b1c37ed4aef80c53284cebe613a53511778ba9f80a3122d11937f

Contact

• Maintainer: Ahmed Raafat
• Email: ahmedrafatbad666655557777@gmail.com
• Telegram Channel: https://t.me/E2_opentune
• Instagram: https://www.instagram.com/error_1693/
• GitHub: https://github.com/Erorr40/OpenTune