I was excited a while back to upgrade our wiki to a more recent version specifically because of the "Special:NewPages" feature. However, now that I'm using it, I find it doesn't quite do what I thought. 

See it in action here: 

Currently it's listing three new pages. Why only three? There seems to be a time limit. Maybe 100 days? That's my guess. 

I've consulted the help page: 

However, it doesn't mention a time limit. 

Does anyone know if there is, indeed, a time limit, and if so what it might be? Also, is there any hack to get around it? 

I'd like to see new pages for the last twelve months or so.

Bart