Status
Current state: Under Discussion
Discussion thread: http://apache-flink-mailing-list-archive.1008284.n3.nabble.com/DISUCSS-FLIP-80-Expression-String-Serializable-and-Deserializable-tt34146.html
JIRA: here (<- link to https://issues.apache.org/jira/browse/FLINK-XXXX)
Released: <Flink Version>
Please keep the discussion on the mailing list rather than commenting on the wiki (wiki discussions get unwieldy fast).
Design documentation: https://docs.google.com/document/d/1LxPEzbPuEVWNixb1L_USv0gFgjRMgoZuMsAecS_XvdE/edit#