User blog comment:DaNASCAT/Technical Update: August 7, 2012/@comment-1038387-20120809165301

Two things I noticed, not sure if it's related to this update:
 * "Stopping by to say Hi" badges are given out again on wikis with Message Wall enabled - this one didn't work for months because it was linked to User talk: namespace.

More importantly:
 * The Archived Talk Page is missing at the bottom of the Wall.