As it happens every week MIUI 9 beta ROMs (China Developer and Global Developer) have been updated. They can be downloaded by the people who registered for the beta testing program, actually the number of versions is 7.10.19. New clock widgets have been added in both the ROMs, they can be accessed by opening the widgets from the home screen. On the China Developer ROM there are various bug fixes in this new version.
On Xiaomi Mi Mix 2 an important bug to the fingerprint scanner which made it not work correctly has been fixed. The bug which caused the images to be compressed more than one time in the gallery has been fixed as well. Game Speed Booster has been optimized on MIUI 9 China Developer ROM, and now the connection also gives more priority to games. On the Global Developer ROM the vulnerability to KRACK WPA2 has been fixed.
Now it is easier to drag the icons in the folder. On MIUI 9 Global Developer ROM there are also the fixes to image compression and fingerprint reader that we described for the China ROM. You can use this link to see the complete changelog for the Chinese ROM and this link to see the one for the Global Beta.