In version 1.5.*, the ability to train the parser to learn function tags (e.g., the -SBJ on a constituent NP-SBJ). In previous versions, this could be accomplished by using the -fun flag in the training call. That flag seems to have been left off in the transition to the new ParserTrainer architecture. Restoring this functionality would be trivial – it simply triggered a call to Parse.useFunctionTags(true).