[Phil]

The official output version of PDF::Builder is supposed to be PDF version 1.4. It is possible that various bits of code added over time may actually implement later versions (1.5, 1.6, 1.7), which would break output PDFs. This topic (thread) is intended for reports of code where post-1.4 output is created. At some point (see https://www.catskilltech.com/forum/general-discussions/bringing-pdfapi2-into-the-21st-century/), we will need to "guard" these outputs with a version number check, but for now we'll just list them here and maybe put a comment in the file to warn developers.

[Phil]

In the discussion of some issues concerning cross reference streams (RT 117184/112932, 121832, 121911) there is mention of "needing" PDF 1.5 level PDF files to demonstrate the problem. Does this mean that some aspect of cross reference streams are PDF 1.5 level? If so, we need to move ahead with implementing PDF version control, as these streams would not be legitimate PDF 1.4.