This was posted on an earlier thread:

"First, you might search through the IIUG website to see if you can
find a copy of Carlton Doe's presentation on 'Upgrading to IDS 9.3 /
9.4' from last years' Data Management conference (?)."
But
searching through IIUG yielding nothing on upgrading to these
versions. We are looking at upgrading to 9.40 and any help is
appreciated.....

thanks!
Tom