Please see the documentation below that deals with upgrades from CAST AIP 7.3.x/8.0.x/8.1.x and between Service Packs of CAST AIP 8.2.x:
Impact of upgrading on analysis results
Please also consult:
- Changes in results post upgrade
- Case Study - Measurement changes after upgrade for selected customer applications
which contain information about changes made between previous releases of CAST AIP and CAST AIP 8.2.x, which may impact the results of your post-upgrade snapshot.