The OC4BAv5 comes with a new driver (OCP4NGXu.exe) that is used when flying the NGXu.
There are also 2 new scripts, the OCP4NGX_v5.0.ssi and OCP4NGX_v5.0P.ssi.
Both scripts have some minor updates.
The non-P version has script code for P&P Pedestal modules and the earlier version of OVH-FWD that uses 2 Servo Cards.
The P version has script code for PEDESTAl based on IDC card and the latest OVH-FWD with only 1 Servo Card.
The NGXu should also work with your old script as long as it worked OK with NGX, but it needs the OCP4NGXu.exe driver.
Users that use the any of new version 5 scripts, must modify them if they have some specific setup and possibly some modification for Servo modification.