M19-Release-Notes.md

@@ -119,6 +119,15 @@ change.
 ### DDMS
   - [RAFS (Rock and Fluid sample) DDMS](https://community.opengroup.org/osdu/platform/domain-data-mgmt-services/home/-/issues/2) - first release in Azure
   - Reservoir DDMS adoption - AWS, GC
+  - `Seismic DDMS`
+     - Add osdu google
+     - Dataset size performance boost
+     - Add seismic Filemetadata v2 endpoints
+     - Added seismic horizon API endpoints
+     - Add userid logging for Azure
+     - Gc multipartition
+     - Allow turnoff of translate-user-info
+     - Add azure hot and cool storage tiers option for cp command
 
 ### External Data Services (EDS)
   - EDS Parent Data Mapping [**issue 268**](https://gitlab.opengroup.org/osdu/subcommittees/ea/projects/extern-data/home/-/issues/268)