diff --git a/csv-table-hub-main/src/lib/csv.functions.ts b/csv-table-hub-main/src/lib/csv.functions.ts
index 2dbaf4d..54d241a 100644
--- a/csv-table-hub-main/src/lib/csv.functions.ts
+++ b/csv-table-hub-main/src/lib/csv.functions.ts
@@ -27,6 +27,10 @@ export const processingLogSchema = z.object({
     "insert",
     "register",
     "overwrite",
+    // M5 (#109): versioned datasets and the checks against earlier versions.
+    "version",
+    "schema_check",
+    "cross_upload_duplicates",
     "done",
     "error",
   ]),