I've been using GH 5 for a while now, and have all my previous sprints organized based on the fixVersion. Now with GH 6 this no longer seems to be used (except in classic views).
This means all my historical data is no longer available in the UI. Is there a good way to get this data into the new system, or will I have to recreate all my sprints manually and do a bunch of filtering to pick out the stories and manually add them to the appropriate sprint?