[interchange] update WHATSNEW

[David Christensen]

commit e071fcb4f69e148041452c125e13768e2f128e07
Author: David Christensen <david at endpoint.com>
Date:   Wed Mar 9 02:03:46 2011 -0600

    update WHATSNEW

 WHATSNEW-5.7 |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)
---
diff --git a/WHATSNEW-5.7 b/WHATSNEW-5.7
index 4159d1d..c6d6730 100644
--- a/WHATSNEW-5.7
+++ b/WHATSNEW-5.7
@@ -32,6 +32,9 @@ Core
 
 * Remove newline from errormessages to be able to parse locale of it
 
+* Fixed a bug in the [read-cookie] tag which in very specific rare
+  circumstances could return the wrong value for a cookie.
+
 Tags
 ----
 * Allow sorting of forum entries.