Stable Rom Vs Weekly Update: Which Base?

[Aratheba]

What are real differences between stable rom and weekly one I mean what is the base of each of those roms?
Is weekly based on china dev while stable on china stable?

I own a MiMax 64GB....then is stable rom based on china stable for mi max 64/128 or on global stable for 32??

Thanks in advance

 

[Byggeren]

It's based on china stable for mi max 64/128.

 

[Aratheba]

It's based on china stable for mi max 64/128.

Thanks