CODEC-96 document API breakage

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/codec/trunk@1309095 13f79535-47bb-0310-9956-ffa450edef68

Author: sebbASF

src/changes/changes.xml

@@ -52,7 +52,9 @@ The <action> type attribute can be add,update,fix,remove.
     -->
     <release version="1.7" date="TBD" description="Feature and fix release.">
       <action dev="ggregory" type="fix" issue="CODEC-96" due-to="sebb">
-        Base64 encode() method is no longer thread-safe, breaking clients using it as a shared BinaryEncoder
+        Base64 encode() method is no longer thread-safe, breaking clients using it as a shared BinaryEncoder.
+        Note: the fix breaks binary compatibility, however the changes are to a class (BaseNCodec) which is
+        intended for internal use.
       </action>
       <action dev="sebb" type="fix" issue="CODEC-138">
         Complete FilterInputStream interface for BaseNCodecInputStream