Groovy client with 0.20.x


Is that true that the groovy es client is not
operational with any 0.20.x version ?
I just forked it and tried to figure it out whats the story , and i see
that the class is gone
that is used overall the 1.1.0 client.

If thats true , is there any ETA on a groovy client that supports 0.20.x ?