With the program version 14.1 of DATEV DMS, Document Filing (Dokumentenablage) and Document Filing with revision (Dokumentenablage Revisionssicherheit), the API version 1.0 is replaced with the API version 2.0.
The API version 1.0 will no longer receive any updates / changes and will only be supported until August 2024.
All updates / changes of the API version 2.0 can be found here Changelog | document management Dokumentation | DATEV Developer Portal.