Issue #13087: BufferedReader.seek() now always raises UnsupportedOperation
if the underlying raw stream is unseekable, even if the seek could be
satisfied using the internal buffer.  Patch by John O'Connor.
diff --git a/Misc/NEWS b/Misc/NEWS
index 2961776..dd98665 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -36,6 +36,10 @@
 Library
 -------
 
+- Issue #13087: BufferedReader.seek() now always raises UnsupportedOperation
+  if the underlying raw stream is unseekable, even if the seek could be
+  satisfied using the internal buffer.  Patch by John O'Connor.
+
 - Issue #7689: Allow pickling of dynamically created classes when their
   metaclass is registered with copyreg.  Patch by Nicolas M. Thiéry and Craig
   Citro.