Issue #12866: The audioop module now supports 24-bit samples.
diff --git a/Doc/whatsnew/3.4.rst b/Doc/whatsnew/3.4.rst
index 38649cc..35f820e 100644
--- a/Doc/whatsnew/3.4.rst
+++ b/Doc/whatsnew/3.4.rst
@@ -197,6 +197,12 @@
 plain tuple.  (Contributed by Claudiu Popa in :issue:`17818`.)
 
 
+audioop
+-------
+
+Added support for 24-bit samples (:issue:`12866`).
+
+
 codecs
 ------