sqlfriends - Friday, December 15, 2017 10:47 AM
+1 to doing a clean Installation but this is one upgrade that needs more than a test of the migration process. Have you considered the effects of new features such as the "improved" cardinality estimator? I point that one out in particular because it may have different effects on different databases and these effects are not always consistent across the instance landscape.
Perhaps I have spoken somewhat out of turn and you have considered this already but IMHO, a DBA that is considering an in-place migration most probably hasn't considered other implications not necessarily related to the migration process itself......
Regards,
Kev