For anyone watching here, the latest commit on the on-premise repo enabled migrating events from 9.1.2! Go give it a shot if you have an older installation but make sure to back up your data first as this is still in testing phase.
Please keep sharing your feedback here 
NOTE: If you have used an earlier version of v10 BETA, you may run into Kafka issues when you upgrade to latest. See this post for the solution: Kafka Error after Upgrading