From 9d6851286695842fc93c1adfc45c6fc8daff73fb Mon Sep 17 00:00:00 2001
From: Michael Merickel <michael@merickel.org>
Date: Wed, 8 Aug 2018 00:18:17 -0500
Subject: add changelog for #3325

---
 CHANGES.rst | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/CHANGES.rst b/CHANGES.rst
index 6ccd69a47..9106c270f 100644
--- a/CHANGES.rst
+++ b/CHANGES.rst
@@ -62,6 +62,12 @@ Bug Fixes
   code. The old ``MIMEAccept`` has been deprecated. The new methods follow the
   RFC's more closely. See https://github.com/Pylons/pyramid/pull/3251
 
+- Catch extra errors like ``AttributeError`` when unpickling "trusted"
+  session cookies with bad pickle data in them. This would occur when sharing
+  a secret between projects that shouldn't actually share session cookies,
+  like when reusing secrets between projects in development.
+  See https://github.com/Pylons/pyramid/pull/3325
+
 Deprecations
 ------------
 
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