diff --git a/src/corelib/text/qanystringview.qdoc b/src/corelib/text/qanystringview.qdoc
index f34a1c552eb..594b7b55b0b 100644
--- a/src/corelib/text/qanystringview.qdoc
+++ b/src/corelib/text/qanystringview.qdoc
@@ -17,9 +17,11 @@
 
     Unlike QStringView and QUtf8StringView, QAnyStringView can hold
     strings of any of the following encodings: UTF-8, UTF-16, and
-    Latin-1. The latter is supported to keep old source working
-    efficiently. It is expected that by Qt 7, the Latin-1 support will
-    be removed.
+    Latin-1. The latter is supported because Latin-1, unlike UTF-8,
+    can be efficiently compared to UTF-16 data: a length mismatch
+    already means the strings cannot be equal. This is not true for
+    UTF-8/UTF-16 comparisons, because UTF-8 is a variable-length
+    encoding.
 
     The string may be represented as an array (or an array-compatible
     data-structure such as QString, std::basic_string, etc.) of \c