I have an Avov Vixo 2 running 1.06 and I just installed Kodi 15.1 from the store.
The funny thing is that is says 15.2 in the description, 15.2 Isengard RC on the splash screen when it starts but 15.1 in the System Info.
Never knew that there was a 15.2 out so it must be a custom version for Avov.