libbs2b 3.1.0 is out, get it here:

• Download

And the change log:

• bs2bconvert/bs2bstream — add switch of crossfeed level by feed level and cut frequency.
• Win32 library of libsndfile v1.0.19 migrated to v1.0.20.
• Fixed for higher compile warning level.
• Extended cut frequency set from [300..1000] to [300..2000] Hz (BS2B_MAXFCUT)
• Apply compile fix patch for FreeBSD by Diego Elio Petteno (flameeyes@gentoo)