The system allows you to copy V4 releases to your V8 encoder account. Please follow the steps below on how to do that.
1) Download the encoder build that includes the migration feature to copy a shared release into v8. You can download that build here.
2) Under Release Pending or History list, search for the release that you want to migrate.
3) Right click on the release and select share release.
4) Select Migrate to V8
5) When the process is complete a notification email will be sent to the encoder user who migrated the release.