Describe the problem:
Koinly says API has been upgraded
This wallet was created using an older version of the API which may result in some data not getting imported correctly. You should delete this wallet and create a new one
Will I loose all my previous transactions? I have had to edit many to get it right. Will I loose these edits and have to go back and correct them again. Can I save my exodus transactions list before I delete it?
You probably had to make the edits to account for errors with the API, which now are probably fixed.
Reminder - you do not need to action this, if your wallet looks good from your edits, keep it as it is. Note, new transactions will be synced using the updated API.
You can even create a new Koinly free account, and test the new API import to see what differences it made, before deciding to do it on your main account.