CHANGELOG.md in meducation_sdk-1.5.6 vs CHANGELOG.md in meducation_sdk-1.5.7

@@ -1,4 +1,7 @@
+# 1.5.7 / 2014-03-4
+* [FEATURE] Add authors to to collection topics
+
 # 1.5.6 / 2014-02-27
 * [FEATURE] Add comments to blog posts
 
 # 1.5.5 / 2014-02-25
 * [BUGFIX] Renamed board follower to board follow