If I were you, I'd migrate to v9.5...that is if you have to migrate soon. I'd never migrate a prod env to the new version without proper testing. v9.5 has been around for some time and is much more stable. v9.7 is very new, it has a good number of migration related bugs that you may run into... So, my advice is to stay with v8 for another year or so and then migrate to v9.7 or migrate to v9.5, if you can't wait.
Some people may suggest otherwise...