1. Change the FMIMS library names wherever needed: Batch, Clists
2. Make sure the system sets the FMIMS loadlib APF
3. Make sure the CAS9 start procedure uses the new APF load library. No change' s needed int the RIM parameter.
4. Check out whether recent fixes were applied to your 9.1 release. We usually source across releases so that would be a very recent one.
Since you are currently running FMIMS 9.1 and going to FMIMS 10; We apply fixes upwards so every 9.1 fix has been applied to 10 and sourced in rel. 11; The only exceptions would be new fixes that we did not have time to float or QA did not have time to process yet.