Upgrade from 9.0.4, route?

Hi,

I have owncloud 9.0.4 installed and i want to do an upgrade because desktop client is warning me current server version is not compatible.
I did some research and read in other forum that i have to update first to 9.0.5 -> 9.1.8 -> finally 9.10.x current
Or can i upgrade directly to 9.1.8?

Thanks