Ars Technica UK:
Google has developed and open-sourced a new JPEG algorithm that reduces file size by about 35 percent—or alternatively, image quality can be significantly improved while keeping file size constant. Importantly, and unlike some of its other efforts in image compression (WebP, WebM), Google’s new JPEGs are completely compatible with existing browsers, devices, photo editing apps, and the JPEG standard.
Looks good so far. As a photographer, I’m always fighting the battle between file size and image quality. Anything that can help is a win.