I've forked and created a pull request in Github. I'm not really keen on Github so I'm not sure that's what I was supposed to do...

Thanks,
     Martín.

> From: christian.gruen@gmail.com
> Date: Thu, 20 Aug 2015 13:59:26 +0200
> Subject: Re: [basex-talk] C# Client for BaseX 8.2.3
> To: ferrari_martin@hotmail.com
> CC: basex-talk@mailman.uni-konstanz.de
>
> Hi Martín,
>
> our C# binding is indeed outdated [1]. You are invited to provide us
> with an updated version! Ideally, you should test the server response
> and choose the old or new authentication, as e.g. demonstrated in our
> Java binding.
>
> Thanks,
> Christian
>
> [1] http://docs.basex.org/wiki/Clients
> [2] https://github.com/BaseXdb/basex/blob/master/basex-examples/src/main/java/org/basex/examples/api/BaseXClient.java#L49-L57
>
>
> On Wed, Aug 19, 2015 at 3:46 PM, Martín Ferrari
> <ferrari_martin@hotmail.com> wrote:
> > Hi,
> > I'm using the BaseXClient.cs C# client found here:
> > https://github.com/BaseXdb/basex/releases/tag/8.2.3
> > I wonder if it's the latest, as it's missing the nonce section in the
> > Session constructor. It seems to work perfectly by just adding it.
> >
> > Thanks!
> > Martín.