This may be of interest for anybody seeking for ways to compress images.
Google open sourced a new JPEG encoder „Guetzli“ (catchy name):
Announcement GitHub repository
I am not quite sure, how this new JPEG encoder could be used except with the command line. Maybe some apps (f. e. ImageOptim) will implement it in their interfaces or maybe it could be used with an module?
Haven't even tried it out yet and it sounds performance intensive, but I am glad that they sticked with JPEG and didn't introduced another exotic format.
Regards, Andreas