Description

In CDS 10 the odata_metadata_compat compat flag is removed. Projects that had set cds.features.odata_metadata_compat: true to keep the legacy OData $metadata output format will now always receive the current metadata representation. The flag has no effect when set and must be removed. The shape of $metadata responses may differ from what consuming Fiori UIs, third-party clients, or snapshot tests expect.

How to Check

• [ ] Search for cds.features.odata_metadata_compat in package.json, .cdsrc.json, and environment-specific config files.
• [ ] If the flag is set to true, retrieve the $metadata document for all exposed OData services and compare it against the version produced with the flag removed.
• [ ] Check snapshot tests or stored $metadata fixtures for hardcoded legacy structures.

Migration Steps

1. Remove the flag from CDS configuration:

   // package.json or .cdsrc.json
     "cds": {
       "features": {
   -     "odata_metadata_compat": true
       }
     }

2. Fetch $metadata from all affected OData endpoints and review the diff against previous snapshots. Update snapshot tests and any client-side metadata parsing code as required.