Issue #8865: Concurrent invocation of select.poll.poll() now raises a
RuntimeError exception.  Patch by Christian Schubert.
diff --git a/Misc/ACKS b/Misc/ACKS
index 349c70e..78d3b47 100644
--- a/Misc/ACKS
+++ b/Misc/ACKS
@@ -1097,6 +1097,7 @@
 Scott Schram
 Robin Schreiber
 Chad J. Schroeder
+Christian Schubert
 Sam Schulenburg
 Stefan Schwarzer
 Dietmar Schwertberger
diff --git a/Misc/NEWS b/Misc/NEWS
index 27fa09d..416f3d3 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -66,6 +66,9 @@
 Library
 -------
 
+- Issue #8865: Concurrent invocation of select.poll.poll() now raises a
+  RuntimeError exception.  Patch by Christian Schubert.
+
 - Issue #13461: Fix a crash in the TextIOWrapper.tell method on 64-bit
   platforms.  Patch by Yogesh Chaudhari.