Is it a requirement to post extra data after upgrading to Code-1 Plus 4.0?

The AP OUT parameter is optional and, if you do not wish to post extra data information you do not need to add that parameter.  

If you are currently using the AP OUT parameter, you will see no changes to your output file if you do not specify formats, locations, and lengths in positions 8 - 26.
UPDATED:  March 29, 2017