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+slug: "2026.8.26"
+title: "2026.8.26: ZRC expand casing fix"
+---
+
+| Component | Summary (english)                                            | Relevance for consumers (English)                                                                                                                                                                                                                                                                                                                       | Relevance for end users (Dutch) | Relevance for system administration (Dutch) |
+| --------- | ------------------------------------------------------------ | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ------------------------------- | ------------------------------------------- |
+| ZRC       | Fixed incorrect key casing in `expand` responses (v1.5)      | `GET /zaken/{uuid}?expand=...` responses previously named three keys with a leading capital instead of camelCase: `betrokkeneIdentificatie` on embedded `rollen`, and `url`/`uuid` on embedded `zaakobjecten`. All three now match the VNG standard's casing. The plain `/rollen` and `/zaakobjecten` endpoints were already correct and are unchanged. |                                 |                                             |
+| ZRC       | Migrated internal object mapping from AutoMapper to Mapster. |                                                                                                                                                                                                                                                                                                                                                         |                                 |                                             |