Hello, I misinterpreted the error.
LWP::Debug::trace() still exists, but one needs to explicitly add use LWP::Debug; to the code to be able to use it. Either way, the code is still very old, broken in the default state, LWP::Debug only exists for legacy code and should not be used anymore (as per its own dicumentation) and a working alternative exists for LWP::Protocol::http::SocketUnix exists, my suggestion and the graveness of this bug is still valid. Grüße, Sven.
