@choyer regarding Yunohost : we ( @oufmilo@calckey.travelpandas.eu and I) do the upgrade separetly. If the changes don't require any packaging change it's pretty straigthforward, available very quickly (depending on our benevolent time ;) in testing and as stable version once we manually tested it.
If the new version introduces major changes, it takes longer...
Here @oufmilo@travelpandas.fr make a lot a work to have a working release candidate version, so hopefully adjusting to final version won't be too long.

cc @panos @atomicpoet