BMP in 2.18.1

Hi! Bird2 fails to start after upgrade to 2.18.1 with the following error message: /etc/bird/bird.conf.d/bird-pmacctd.conf:1:10 syntax error, unexpected CF_SYM_UNDEFINED Content of the file is: protocol bmp pmacctd { station address ip 127.0.0.1 port 17917; monitoring rib in pre_policy; monitoring rib in post_policy; tx buffer limit 64; } Downgrading back to 2.18 (apt-get install bird2=2.18-cznic.1~trixie), without touching the config, lets bird2 start again. I can't find the build log in Gitlab to check if the configure option was omitted, nor anything in the NEWS file. Kind regards, Srdjan