Current state: Accepted
Discussion thread: here
Vote thread: here
Please keep the discussion on the mailing list rather than commenting on the wiki (wiki discussions get unwieldy fast).
Since KIP-382 (MirrorMaker 2.0), a new method commitRecord was included in SourceTask class to be called by the worker adding a new parameter with the record metadata. The old commitRecord method is called from the new one and is not called anymore (it's preserved just for backwards compatibility).
I suggest to deprecate
commitRecord(SourceRecord) in class
Compatibility, Deprecation, and Migration Plan
As we are only deprecating a method in a class, there are not backward compatibility concerns.