From ee26b57517530446d637edb9436e36c44674619f Mon Sep 17 00:00:00 2001
From: Eddie Hebert <ehebert@quantopian.com>
Date: Thu, 14 Apr 2016 15:26:12 -0400
Subject: [PATCH] DOC: Add whatsnew entry for ExpiringCache.

---
 docs/source/whatsnew/0.9.1.txt | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/docs/source/whatsnew/0.9.1.txt b/docs/source/whatsnew/0.9.1.txt
index 1f5791d7..b115b5ee 100644
--- a/docs/source/whatsnew/0.9.1.txt
+++ b/docs/source/whatsnew/0.9.1.txt
@@ -22,6 +22,11 @@ Enhancements
   factor to only compute over stocks for which the filter returns True, rather
   than always computing over the entire universe of stocks. (:issue:`1095`)
 
+* Added :class:`zipline.utils.cache.ExpiringCache`.
+  A cache which wraps entries in a :class:`zipline.utils.cache.CachedObject`,
+  which manages expiration of entries based on the `dt` supplied to the `get`
+  method.
+
 Experimental Features
 ~~~~~~~~~~~~~~~~~~~~~