What is the process of migrating from 2.400 to 2.500 withing the SDSFIE environmnet?
It is possible to create an extract within the Geodatabase Builder (or from a standalone dowloadable executable) that can be submitted to the Checker. Once you are an authorized user of this web site, you will see it under Web Tools. I would run an extract of your 2.4 Geodatabase, and run it through the Checker using Release 2.500 as a baseline. The resulting report should give you some specifics as to what is going on. In some cases, you can “declare yourself a winner” since the SDSFIE did not change. In other cases, you may be able to make the change yourself manually.