Hello MIUIers of Italy and welcome to the complete changelog for the new version of the China Developer branch that reaches the MIUI 6.12.8 numbering and I remember it being published weekly every Thursday night.
No doubt the most interesting and important novelty of this week is the release of the first version of the Android 7.0 Nougat based MIUI for the Xiaomi Mi5 that finally comes out of the alpha phase and reaches the beta phase. Gradually we will see it also on other compatible models.
Other novelties are:
New Features for Doodles
In the previous version, black and white colors were missing for scribes and graffiti. We listened to your requests and added them. In the image editor you will find this novelty.
Limit devices for your personal hotspot
For added security and to limit excessive resource consumption, we've added the ability to limit the number of connections to your personal hotspot.
MIUI 8 China Developer ROM 6.12.8 Full Changelog
[Lock Screen, Status Bar, Notification Bar]
Solved - Landscape mode issues with third party themes (12-06)
[Gallery]
New - New black and white doodles
[Weather]
Improved - Improved home animations
Improved - Optimized interface for city selection
[Settings]
New - Set a connection limit to your hotspot
[Market]
Fixed - Automatic updates stopped at the exit of the app store
[Safety]
Fixed - The energy saving settings remained active even when a game speed boost game was released
Source | MIUI official forum
who gives me information on what the developer and the other xiaomi roms are?
Here is a nice article http://www.xiaomitoday.it/le-differenze-le-varie-branche-sviluppo-della-miui.html