From f53f3e1fc8cb381e1b276db8f63a87db6c572ea6 Mon Sep 17 00:00:00 2001
From: patrick <61934744+phofl@users.noreply.github.com>
Date: Sun, 11 Oct 2020 15:44:10 +0200
Subject: [PATCH] Backport PR #37046 on branch 1.1.x: Add whatsnew for #36727

---
 doc/source/whatsnew/v1.1.4.rst | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/source/whatsnew/v1.1.4.rst b/doc/source/whatsnew/v1.1.4.rst
index 3ad8d981be2c9..3cd72caa3d257 100644
--- a/doc/source/whatsnew/v1.1.4.rst
+++ b/doc/source/whatsnew/v1.1.4.rst
@@ -17,6 +17,7 @@ Fixed regressions
 - Fixed regression where attempting to mutate a :class:`DateOffset` object would no longer raise an ``AttributeError`` (:issue:`36940`)
 - Fixed regression where :meth:`DataFrame.agg` would fail with :exc:`TypeError` when passed positional arguments to be passed on to the aggregation function (:issue:`36948`).
 - Fixed regression in :class:`RollingGroupby` with ``sort=False`` not being respected (:issue:`36889`)
+- Fixed regression in :class:`RollingGroupby` causing a segmentation fault with Index of dtype object (:issue:`36727`)
 
 .. ---------------------------------------------------------------------------