Are Classic PTR (Batching) changes live?

I figure surely yall wouldn’t push an update without patch notes, but there has been some speculation that it has been updated, and it does seem like some, if not all, batching interactions are different now on live.

I know its a long-shot but… any chance of confirmation on this either way?

If they are testing it on the PTR, then it is not on the live servers yet. They just started the testing and have to determine what the percentage of batching to set it at to go live with.

That would be the assumption. But early logs and testing from today are seeming to indicate otherwise.