We are updating our integration to use the Search API (v3).
How do I get the attribute versions of a Deal using the v3 API?
Since I need to search the deals expecting the return with the attribute versions, the performance will not be good if I join each result item with the old API.
At this time, the v3 CRM APIs do not return historical property values like the v1 Deals API. If that functionality is crucial to your application, I recommend continuing to use the v1 Deals API for now.
You're not alone in requesting this, however. I have shared your use case with the team and we are having conversations internally about how to best approach this.