Without Apple Lossless Audio CODEC (ALAC), to officially announce this in any way in public documents related to iOS 8 or OS X Yosemite, company Apple Lossless Audio CODEC (ALAC), implemented support for the format APNG in Safari for both operating systems. The image above is APNG, i.e. animated PNG and if you view the article from Safari for iOS 8, OS X Yosemite or Firefox, then the needle will rotate, but if you view the image from any other browser, you will see it static.
The Animated Portable Network Graphics (APNG) file format is a non-standard extension to the Portable Network Graphics (PNG) specification. It allows for animated PNG files that work similarly to animated GIF files, while supporting 24-bit images and 8-bit transparency not available for GIFs. It also retains backward compatibility with non-animated PNG files.
Format APNG was thought to replace GIFs that do not allow the application of 8-bit transparency over the animated images displayed in them, but the standard has not received the necessary support in recent years. With support implementation for him in iOS and OS X Yosemite, we will definitely see more images of this kind published on the Internet.
