Since 0.8.0, glass, glass panes, grass, iron bars, cocoa beans, and even mobs disappear when being far away (creative and survival)

This is not a joke, when looking very closely on the image to the right, there is no glass nor any of the items listed in the issue, a fix for 0.11.0

Works As Intended. This is optimization for lower-end devices.
I recommend checking the Minecraft Wiki prior to reporting an issue on the bugtracker, as what seems to be a bug to you may actually be intended.