2 files changed, 4 insertions, 0 deletions

diff --git a/Misc/ACKS b/Misc/ACKS
index aaa8dd4..54fa661f 100644
--- a/Misc/ACKS
+++ b/Misc/ACKS
@@ -721,6 +721,7 @@ Petri Lehtinen
 Luke Kenneth Casson Leighton
 Tshepang Lekhonkhobe
 Marc-André Lemburg
+Mateusz Lenik
 John Lenton
 Kostyantyn Leschenko
 Christopher Tur Lesniewski-Laas
diff --git a/Misc/NEWS b/Misc/NEWS
index 825f6b3..f0cbca2 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -59,6 +59,9 @@ Core and Builtins
 Library
 -------
 
+- Issue #17557: Fix os.getgroups() to work with the modified behavior of
+  getgroups(2) on OS X 10.8.  Original patch by Mateusz Lenik.
+
 - Issue #18599: Fix name attribute of _sha1.sha1() object. It now returns
   'SHA1' instead of 'SHA'.