--- dds-xtypes-rtf4_typeobject_issue-36_52_68_35.idl	2025-10-14 17:50:44
+++ dds-xtypes-rtf4_typeobject_issue-36_52_68_35_80.idl	2026-02-09 18:48:41
@@ -416,12 +416,20 @@
 
 
     // --- Aggregate types: ------------------------------------------------
+    @extensibility(APPENDABLE) @nested
+    struct MinimalAppliedBuiltinMemberAnnotations {
+        @optional string                  unit; // @unit("<unit>")
+        @optional AnnotationParameterValue min; // @min , @range
+        @optional AnnotationParameterValue max; // @max , @range
+    };
+
     @extensibility(APPENDABLE) @nested
     struct AppliedBuiltinMemberAnnotations {
         @optional string                  unit; // @unit("<unit>")
         @optional AnnotationParameterValue min; // @min , @range
         @optional AnnotationParameterValue max; // @max , @range
         @optional string               hash_id; // @hash_id("<membername>")
+        @optional AnnotationParameterValue default_value; 
     };
 
     @extensibility(FINAL) @nested
@@ -459,6 +467,8 @@
     struct MinimalStructMember {
         CommonStructMember                         common;
         MinimalMemberDetail                        detail;
+        @optional 
+        MinimalAppliedBuiltinMemberAnnotations     ann_builtin;
     };
     // Ordered by the member_index
     typedef sequence<MinimalStructMember> MinimalStructMemberSeq;
@@ -553,6 +563,8 @@
     struct MinimalUnionMember {
         CommonUnionMember   common;
         MinimalMemberDetail detail;
+        @optional 
+        MinimalAppliedBuiltinMemberAnnotations     ann_builtin;
     };
     // Ordered by MinimalUnionMember.common.member_id
     typedef sequence<MinimalUnionMember> MinimalUnionMemberSeq;
@@ -562,6 +574,8 @@
     struct MinimalUnion64Member {
         CommonUnion64Member   common;
         MinimalMemberDetail   detail;
+        @optional 
+        MinimalAppliedBuiltinMemberAnnotations     ann_builtin;
     };
     // Ordered by MinimalUnion64Member.common.member_id
     typedef sequence<MinimalUnion64Member> MinimalUnion64MemberSeq;
@@ -695,6 +709,8 @@
     @extensibility(APPENDABLE) @nested
     struct MinimalAliasBody {
         CommonAliasBody       common;
+        @optional 
+        MinimalAppliedBuiltinMemberAnnotations  ann_builtin;
     };
 
     @extensibility(APPENDABLE) @nested