It's on the roadmap.
In the meantime, are you able to downgrade your SS2014 to 2012?
Sorry for slow reply Is there and estimated eta , no we can't downgrade from SS2014 to SS2012 similarly to Oracle the dump formats are not backward compatible . Is there a reason for sqldeveloper lagging behind on this sooo much . I thought it would be in Oracle's interest to offer migration off a competitor ?? .The time doing this manually means that the move to Oracle is shelved ., Thanks for reply
Most SQL Server customers looking to migrate to Oracle aren't running the latest and greatest versions of SQL Server.