Weekly MIUI update for official global ROM

So I will admit to some confusion due to the state of development of MIUI ROM's and their AOSP support. Anyway, I'm wondering about the weekly developer ROM from here, as it has not been updated in a couple of weeks at least. In the case that this is normal, I'm perplexed at the term 'weekly.'
So,
1.) Is this link the location of the official global ROM for the RN2, and
2.) What is the normal update schedule for this?

Download from this link