Hello Kevin, I don't know the details, but I guess there will no automatic rebuild of baresip triggered on migration. As far as I see [1], the only users of libre0 are baresip and librem0, so I guess both might need a rebuild. Maybe someone with more shared library packaging knowledge might give some pointers what steps need to be taken now?
Kind regards, Bernhard [1] `apt-cache rdepends libre0` in an unstable VM.