creo4 config.pro option documentation for: MNGR_OUTDATED_PIPE_SOLIDS 
mngr_outdated_pipe_solids
(Spec-Driven Piping)
yes
*
, no
Displays a notification that the pipe solids that you loaded in the current version of the piping application of Creo are outdated.
yes
*
- Displays notifications for the outdated pipe solids in the Notification Center and in the Model Tree.
No
- Does not display notifications for the outdated pipe solids.