CHANGELOG.md in embulk-formatter-single_value-0.3.0 vs CHANGELOG.md in embulk-formatter-single_value-0.3.1

@@ -1,4 +1,10 @@
+# 0.3.1 (2017-08-26)
+
+Enhancements:
+
+* Use old, but non-deprecated TimestampFormatter API to support embulk < 0.8.29
+
 # 0.3.0 (2017-08-23)
 
 Changes:
 
 * Support new TimestampFormatter API of embulk >= 0.8.29