--- dds-xtypes-rtf4_discovery_builtin_topics_issue-80.idl	2025-12-28 07:32:13
+++ dds-xtypes-rtf4_discovery_builtin_topics_issue-80-182.idl	2025-12-28 08:41:06
@@ -204,6 +204,16 @@
         boolean ignore_ranges;
         boolean ignore_units;
         boolean ignore_unspecified_units;
+    };
+
+    @bit_bound(32)
+    bitmask DataRepresentationDetailMask {
+        @position(0) map_xcdr2_length_ommitted;
+    };
+
+    @extensibility(APPENDABLE)
+    struct DataRepresentationDetail {
+        DataRepresentationDetailMask detail_mask;
     };
 
     @extensibility(MUTABLE)
@@ -215,6 +225,7 @@
         @id(0x0072) @optional TypeObjectV1 type; // XTYPES 1.1
         @id(0x0075) @optional XTypes::TypeInformation type_information; 
                                                       // XTYPES 1.2
+
         @id(0x001D)      DurabilityQosPolicy durability;
         @id(0x001E)      DurabilityServiceQosPolicy durability_service;
         @id(0x0023)      DeadlineQosPolicy deadline;
@@ -228,7 +239,11 @@
         @id(0x0041)      ResourceLimitsQosPolicy resource_limits;
         @id(0x001F)      OwnershipQosPolicy ownership;
         @id(0x002E)      TopicDataQosPolicy topic_data;
+
         @id(0x0073)      DataRepresentationQosPolicy data_representation;
+
+        @id(0x0076) @optional XTypes::DataRepresentationDetail 
+                        data_representation_detail; // XTYPES 1.4
     };
 
     @extensibility(MUTABLE)
@@ -247,6 +262,9 @@
         @id(0x0072) @optional TypeObjectV1 type; // XTYPES 1.1
         @id(0x0075) @optional XTypes::TypeInformation type_information;                   
                                                       // XTYPES 1.2
+        @id(0x0076) @optional XTypes::DataRepresentationDetail 
+                                data_representation_detail; // XTYPES 1.4
+
         @id(0x001D)      DurabilityQosPolicy durability; 
         @id(0x001E)      DurabilityServiceQosPolicy durability_service;
         @id(0x0023)      DeadlineQosPolicy deadline;
@@ -262,6 +280,7 @@
         @id(0x0029)      PartitionQosPolicy partition; 
         @id(0x002E)      TopicDataQosPolicy topic_data;
         @id(0x002D)      GroupDataQosPolicy group_data;
+
         @id(0x0073)      DataRepresentationQosPolicy data_representation;
     };
 
@@ -277,10 +296,15 @@
         @id(0x0050)      BuiltinTopicKey_t participant_key;
         @id(0x0005)      ObjectName topic_name;
         @id(0x0007)      ObjectName type_name;
-        @id(0x0069) @optional TypeIdV1 type_id; // XTYPES 1.1
+
+        @id(0x0069) @optional TypeIdV1 type_id;  // XTYPES 1.1
         @id(0x0072) @optional TypeObjectV1 type; // XTYPES 1.1
-        @id(0x0075) @optional XTypes::TypeInformation type_information; 
-                                                      // XTYPES 1.2
+        
+        @id(0x0075) @optional XTypes::TypeInformation 
+                                type_information;           // XTYPES 1.2
+        @id(0x0076) @optional XTypes::DataRepresentationDetail 
+                                data_representation_detail; // XTYPES 1.4
+
         @id(0x001D)      DurabilityQosPolicy durability;
         @id(0x0023)      DeadlineQosPolicy deadline;
         @id(0x0027)      LatencyBudgetQosPolicy latency_budget;
@@ -294,9 +318,10 @@
         @id(0x0029)      PartitionQosPolicy partition;
         @id(0x002E)      TopicDataQosPolicy topic_data;
         @id(0x002D)      GroupDataQosPolicy group_data;
+
         @id(0x0073)      DataRepresentationQosPolicy data_representation;
         @id(0x0074)      TypeConsistencyEnforcementQosPolicy
-                              type_consistency;
+                                type_consistency;
     };
 
     @extensibility(MUTABLE)