CHANGELOG.md in google-cloud-datastore-1.6.0 vs CHANGELOG.md in google-cloud-datastore-1.7.0

@@ -1,6 +1,14 @@
 # Release History
 
+### 1.7.0 / 2019-10-29
+
+This release requires Ruby 2.4 or later.
+
+#### Documentation
+
+* Clarify which Google Cloud Platform environments support automatic authentication
+
 ### 1.6.0 / 2019-08-23
 
 #### Features
 
 * Support overriding of service endpoint