Revise change log.

Author: yfakariya

CHANGES.txt

@@ -746,9 +746,10 @@ Release 1.0.0-rc1 2017-12-17
     This bug also caused misleading error message for incompatible type conversion.
   * Fix exceptions thrown by MessagePackObject.AsBinary()/AsString() reports internal type name. Part of #269.
 
-Release 1.0.0
+Release 1.0.0 2018-6-14
 
   BUG FIXES
   * [NonSerialized] attribute does not effect in Mono based platform including Unity.
   * Fix map keys order emitted by asymmetric (serialization only) serializer are inconsistent across platform.
   * Fix Unity build does not honor serialization related attributes correctly.
+  * Fix internal inconsitency between serialization related attributes detection and their parameter retrieval.