RFCs #1, #3: add prominent amendment notice.

whitequark · whitequark · commit 7d6859bbd18e · 2023-06-01T09:01:41.000Z
diff --git a/text/0001-aggregate-data-structures.md b/text/0001-aggregate-data-structures.md
@@ -4,6 +4,8 @@
 
 # Aggregate data structure library
 
+> **Amendments**
+> The behavior described in this RFC was updated by [RFC #8](0008-aggregate-extensibility.md), [RFC #9](0009-const-init-shape-castable.md), and [RFC #15](0015-lifting-shape-castables.md).
 
 ## Summary
 
diff --git a/text/0003-enumeration-shapes.md b/text/0003-enumeration-shapes.md
@@ -4,6 +4,9 @@
 
 # Enumeration shapes
 
+> **Amendments**
+> The behavior described in this RFC was updated by [RFC #4](0004-const-castable-exprs.md).
+
 ## Summary
 [summary]: #summary
 
