Mention the additional way to use the lvl parameter and when it changed.
diff --git a/Doc/library/logging.rst b/Doc/library/logging.rst
index df5e5a5..5a41160 100644
--- a/Doc/library/logging.rst
+++ b/Doc/library/logging.rst
@@ -87,6 +87,11 @@
    If the root is reached, and it has a level of NOTSET, then all messages will be
    processed. Otherwise, the root's level will be used as the effective level.
 
+   .. versionchanged:: 3.2
+      The *lvl* parameter now accepts a string representation of the
+      level such as 'INFO' as an alternative to the integer constants
+      such as :const:`INFO`.
+
 
 .. method:: Logger.isEnabledFor(lvl)
 
@@ -319,6 +324,11 @@
    severe than *lvl* will be ignored. When a handler is created, the level is set
    to :const:`NOTSET` (which causes all messages to be processed).
 
+   .. versionchanged:: 3.2
+      The *lvl* parameter now accepts a string representation of the
+      level such as 'INFO' as an alternative to the integer constants
+      such as :const:`INFO`.
+
 
 .. method:: Handler.setFormatter(form)