Hello MIUIers of Italy and welcome to the complete changelog for the new version of the China Developer branch that reaches the MIUI 7.3.16 numbering and I remember it being published weekly every Thursday night.
We do not find any particular news in this release for this version, except for the new security setting that will allow you to obscure the contents of notifications on the lock screen.
MIUI 8 China Developer ROM 7.3.16 Full Changelog
App Lock
New - Option to hide the contents of notifications on the lock screen
We Wallet
New - Hangzhou transport card
Improved - Errors caused by removing some cards from Mi Pay
Fixed - Transport card history was in some cases incorrect
Source | MIUI Forum