Apple had to keep PVRTC support. Apps were shipping with PVRTC compressed textures and no fallbacks. What I find interesting is that PVRTC is the very last pro

Apple had to keep PVRTC support. Apps were shipping with PVRTC compressed textures and no fallbacks. What I find interesting is that PVRTC is the very last proprietary IMG format that Apple GPUs support. IMG introduced an improved PVRTC2 texture compression format in 2012. Yet no Apple device has ever exposed support for it. It looks like Apple was already thinking ahead back then and wanting to avoid supporting features that would require extra royalties.