Highlight of this version is "Lazyload" feature.
Many avatar deteriorate display performance of the community system. Q2A is also same. Display performance improve by delaying the loading of avatar and photos. Desktop performance is 30% up. And, especially, mobile performance will be up many times.
Currently, avatar and photos in the articles are displayed by fadeIn(400ms) of the jQuery.
But, algorithm of lazyload is very nervous. Therefore, this is experimental release.