The February 2023 release of MDM - Reference 360 includes the following important notices.
Deprecated support for export and import model version 2 APIs
Effective in the February 2023 release, the export and import model version 2 REST APIs are deprecated. Informatica intends to drop support for these APIs in a future release.
You can use the export and import model version 3 APIs to export and import assets from source to target organizations.