M18-Release-Notes.md

@@ -97,6 +97,13 @@ TBD
 - Reservoir DDMS:
   1. Server : two-steps authentications for token renewal
   2. Client : OSDU identifier in Manifest generation, improving link with seismic domain
+- Seismic DDMS:
+  - An API that compute and retrieve the size of a dataset and the date of when the size was computed
+  - (AWS) Using keda scaling
+  - (Azure) dataset exist getMulti
+  - Use x-user-id in createdby and admin field OSDU
+  - (SDAPI) Add custom retry at SDManager level
+  - (SDUTIL) Implemented checksum upload and validation for cp/stat operations
 
 ### External Data Services (EDS)