V8 introduced Memory Files, Queues and Notification, and performance monitoring tools.
Cleanly shut down any existing V8 Servers and remove remaining transaction logs (see Steps for a Clean Upgrade). V9 introduces a new transaction log format.
Store a copy of the V8 dynamic dump restore utility (ctrdmp) with any remaining backup files in case of future recovery. Consider validating a fresh V9 dump and restore and review your backup procedures at this time.
