Soon after I announced the release of gupnp- tools / av , someone pointed out that libsoup-2.4 is already out and therefore gssdp and gupnp needs to be ported to the new API. I am already done with the porting of gssdp and most of the gupnp (thanks to Dan Winship for being so helpful) but then came the shock: the SOAP support has suddenly been dropped from libsoup. I blamed my ignorance on me not being subscribed to libsoup ML so I started to dig into the archives but failed to find any mention of this change. I know how to solve this issue and I am sure Dan will help me out in this one as well but IMO APIs should be deprecated first and then removed in the next major release.