diff --git a/icu4c/source/common/uprops.cpp b/icu4c/source/common/uprops.cpp
index 0f80d742d657..817a1fac0c01 100644
--- a/icu4c/source/common/uprops.cpp
+++ b/icu4c/source/common/uprops.cpp
@@ -612,9 +612,9 @@ static int32_t scriptGetMaxValue(const IntProperty &/*prop*/, UProperty /*which*
 
 /*
  * Map some of the Grapheme Cluster Break values to Hangul Syllable Types.
- * Hangul_Syllable_Type is redundant with a subset of Grapheme_Cluster_Break.
+ * Hangul_Syllable_Type used to be fully redundant with a subset of Grapheme_Cluster_Break.
  *
- * Starting with Unicode 16, there is an exception:
+ * Starting with Unicode 16, this is no longer true for HST=V vs. GCB=V in some cases:
  * Some Kirat Rai vowels are given GCB=V for proper grapheme clustering, but
  * they are of course not related to Hangul syllables.
  */
diff --git a/icu4j/main/core/src/main/java/com/ibm/icu/impl/UCharacterProperty.java b/icu4j/main/core/src/main/java/com/ibm/icu/impl/UCharacterProperty.java
index feb7e7a5847b..1076cc5895a4 100644
--- a/icu4j/main/core/src/main/java/com/ibm/icu/impl/UCharacterProperty.java
+++ b/icu4j/main/core/src/main/java/com/ibm/icu/impl/UCharacterProperty.java
@@ -677,9 +677,9 @@ public int getType(int c) {
 
     /*
      * Map some of the Grapheme Cluster Break values to Hangul Syllable Types.
-     * Hangul_Syllable_Type is redundant with a subset of Grapheme_Cluster_Break.
+     * Hangul_Syllable_Type used to be fully redundant with a subset of Grapheme_Cluster_Break.
      *
-     * Starting with Unicode 16, there is an exception:
+     * Starting with Unicode 16, this is no longer true for HST=V vs. GCB=V in some cases:
      * Some Kirat Rai vowels are given GCB=V for proper grapheme clustering, but
      * they are of course not related to Hangul syllables.
      */