Spotify has issued a DMCA takedown notice against ReVanced, an open-source patching project, over their "Unlock Premium" patch, alleging it circumvents Spotify's technological protection measures and is a derivative of their copyrighted code.

• Spotify claims the patch bypasses encryption, transfers key protocols, and premium restrictions like unlimited skipping.
• ReVanced argues their patch does not copy Spotify's code and primarily makes the app usable when modified, as Spotify requires "attestation" to prevent patched versions from running.
• The case could set a significant precedent for open-source patching and the interpretation of DMCA violations concerning bypassing software restrictions.