Xiaomi Just released new update MIUI 184.108.40.206. This update is only 32 MB.
Whats new in this update: miui 220.127.116.11
Contacts: Fix- Duplicate cntacts appeared after multiple imports from sim card.
Gallery: Fix- Photos appeared in albums with a delay.
How to update: miui 18.104.22.168
This update is OTA ( Over the Air). Just go to setting >> about phone>>system update. checking for update>> tap on update.