DCD doesn't work correctly after firmware update

[rosenrost]

I did a firmware update today (3.04 -> 3.40) and after doing so, DCD is not handled correctly anymore. My configuration is to follow server connection (AT&C1), but my BBS always thinks the carrier got lost. Changing this to "always connected" (AT&C0) or switching DCD polarity to "inverted" (AT*C1) enables me to log in, but now the BBS doesn't recognize hang-ups.

Is there a way to change back to the old firmware until this bug has been fixed?

This is my modem setup:

Code:

at&v
B0 C0 E1 L0 M0 N0 Q0 V1 X0 S0:0 S1:0 S2:43 S3:13 S4:10 S5:8 S6:2 S7:60 S8:2 S9:6 S10:15 S11:90 S12:50 S25:0 S30:30 S37:6 *B19200 *BL512 *C0 *D1 *L6400 *LED1 *P1541 *R0 *T0 &C1 &D2 &G0 &K0 &Q0 &S0