Safari on iOS 8 has been found to support animated PNG images (APNG), a standard conceived as a replacement for animated GIF, as discovered by MacRumors on Monday.
The Animated Portable Network Graphics file format was proposed in 2004, but failed to take off as a replacement for the animated GIF file format widely used to embed short animations online.
Unlike animated GIFs, APNG files support 24-bit images and 8-bit transparency not available for GIFs.