2 files changed, 4 insertions, 0 deletions
diff --git a/Misc/ACKS b/Misc/ACKS
index 164473f139..0066b3273a 100644
--- a/Misc/ACKS
+++ b/Misc/ACKS
@@ -382,6 +382,7 @@ Eric Huss
 Jeremy Hylton
 Gerhard Häring
 Fredrik Håård
+Catalin Iacob
 Mihai Ibanescu
 Lars Immisch
 Bobby Impollonia
diff --git a/Misc/NEWS b/Misc/NEWS
index e34bd48619..ae2b5fa53a 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -83,6 +83,9 @@ Core and Builtins
 Library
 -------
 
+- Issue #12161: Cause StringIO.getvalue() to raise a ValueError when used on a
+  closed StringIO instance.
+
 - Issue #12182: Fix pydoc.HTMLDoc.multicolumn() if Python uses the new (true)
   division (python -Qnew). Patch written by Ralf W. Grosse-Kunstleve.