diff --git a/Doc/library/wave.rst b/Doc/library/wave.rst
index d320975708c07c..c85e2d7a150a3e 100644
--- a/Doc/library/wave.rst
+++ b/Doc/library/wave.rst
@@ -125,6 +125,8 @@ Wave_read Objects
       This is one of :data:`WAVE_FORMAT_PCM`,
       :data:`WAVE_FORMAT_IEEE_FLOAT`, or :data:`WAVE_FORMAT_EXTENSIBLE`.
 
+      .. versionadded:: 3.15
+
 
    .. method:: getcomptype()
 
@@ -284,6 +286,8 @@ Wave_write Objects
 
       Return the current frame format code.
 
+      .. versionadded:: 3.15
+
 
    .. method:: setparams(tuple)