update CHANGES for v2.7.0 release
diff --git a/CHANGES.md b/CHANGES.md
index 5df6693..0b7059e 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -1,5 +1,7 @@
-Version 2.7.0 released XXXX-XX-XX
+Version 2.7.0 released 2013-08-01
 
+* Fix 0-length range responses
+  https://github.com/mochi/mochiweb/pull/87
 * Add support for all possible `erlang:decode_packet/3` responses,
   previously these would just crash.
   https://github.com/mochi/mochiweb/pull/114