remove __version__s dependent on subversion keyword expansion (closes #12221)
diff --git a/Misc/NEWS b/Misc/NEWS
index b3d21f8..63a9ded 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -184,6 +184,10 @@
 Library
 -------
 
+- Issue #12221: Remove __version__ attributes from pyexpat, pickle, tarfile,
+  pydoc, tkinter, and xml.parsers.expat. This were useless version constants
+  left over from the Mercurial transition
+
 - Issue #12085: Fix an attribute error in subprocess.Popen destructor if the
   constructor has failed, e.g. because of an undeclared keyword argument. Patch
   written by Oleg Oshmyan.