Well the comment was about the support scripts etc. not working in Poser 11 which probably some did stop working and Poser 11.2 does require the Snarrly fix to make the version number return something like a valid result.  So anything Poser 10 and lower to 6 maybe 5 should continue to work with V4.

Poser 5, 6, 7, 8, Poser Pro 9 (2012), 10 (2014), 11, 12, 13