User blog comment:Kirkburn/Technical Update: July 6, 2015/@comment-23989026-20150707093103

What is the logic removing "Preview" from Main Page editing? Your colleague, Ducksoup, wants us to make our pages "mobile-friendly". It is impossible to check when you remove the Mobile Preview from us!

"Preview" is also not available on Wiki-navigation. As Wiki-navigation requires Preview to save, Wiki-navigation cannot be updated!