CM13 rom for Yunique is quite stable and all the major functionalities are working in it.For installing cm13 in your device make sure that your device it rooted and having custom recovery installed in your device.For reporting bugs and updated bug list visit XDA Thread. For official list of devices getting Official Cm13 rom check here.
#How to install CM13 rom on YU Yunique
1.Download unofficial CM 13 nightly for YU Yunique and the appropriate Gapps 6.0 package
from link given below Copy it in your in your device.
2.Now place the Official Cyanogenmod 13 rom and gapps 6.0 zip file in sd card.
3.Now reboot to custom Recovery mode.
4.Then flash CM13 rom and Gapps 6.0 from recovery in it.
5.Now Clear cache and Clear Data.
6.Reboot your device.Done! you just flash Official cyanogenmod 13 rom in your YU Yunique.
Enjoy Android Marshmallow 6.0 !.