Issue #15399: Added versionchanged for processName.
diff --git a/Doc/library/logging.rst b/Doc/library/logging.rst
index b77fd36..7ed1f1a 100644
--- a/Doc/library/logging.rst
+++ b/Doc/library/logging.rst
@@ -629,6 +629,9 @@
 .. versionchanged:: 2.5
    *funcName* was added.
 
+.. versionchanged:: 2.6
+   *processName* was added.
+
 .. _logger-adapter:
 
 LoggerAdapter Objects