This release adapts to the lowpass range extension introduced with libbs2b 3.1.0. So if you (or someone else) upgrades libbs2b on your machine to 3.1.0 you should upgrade to 0.9.1 of the LADSPA plugin. Get it here:

• LADSPA bs2b plugin download

Let me take the opportunity to point to

• ALSA headphone bs2b howto by Julian Weißgerber

once more.