From 40b5045a0ab1acc29b4e016eb206c8fe4993f00b Mon Sep 17 00:00:00 2001
From: Daniel Patterson <daniel@mapbox.com>
Date: Thu, 31 Aug 2017 14:52:15 -0700
Subject: [PATCH] Update CHANGELOG

---
 CHANGELOG.md | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 8c16353f8..704350f15 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -12,6 +12,9 @@
       - New property for profile table: `excludable` that can be used to configure which classes are excludable at query time.
       - New optional property for profile table: `classes` that allows you to specify which classes you expect to be used.
         We recommend this for better error messages around classes, otherwise the possible class names are infered automatically.
+    - Traffic:
+      - If traffic data files contain an empty 4th column, they will update edge durations but not modify the edge weight.  This is useful for
+        updating ETAs returned, without changing route selection (for example, in a distance-based profile with traffic data loaded).
     - Infrastructure:
       - New file `.osrm.cell_metrics` created by `osrm-customize`.