#6394: Add os.getppid() support for Windows.
diff --git a/Doc/library/os.rst b/Doc/library/os.rst
index 2e29e4a..9373bda 100644
--- a/Doc/library/os.rst
+++ b/Doc/library/os.rst
@@ -281,10 +281,14 @@
.. index:: single: process; id of parent
- Return the parent's process id.
+ Return the parent's process id. When the parent process has exited, on Unix
+ the id returned is the one of the init process (1), on Windows it is still
+ the same id, which may be already reused by another process.
- Availability: Unix.
+ Availability: Unix, Windows
+ .. versionchanged:: 3.2
+ Added support for Windows.
.. function:: getresuid()