The record history allows us to compare previous versions of the record. This can be useful if we think that unintended changes have been made and we want to revert to a previous version of the record. Records will only have a history once a first change has been made in the MARC Editor - we cannot go back to see any changes that were made in Horizon, only those that were performed in the MARC Editor will be visible.
There are currently issues with reverting to a previous version of the record, so this functionality shouldn't be used just yet.
