There's a new x265 option, currently only in the nightly x265's, just to be aware for later
--splitrd-skip
In the new audio settings page, if you change the codec and don't have it set to automatic it allows you to select Opus recording with qaac encoder. This may result in people trying to select incorrect combinations. BTW I like the improvements with batch handling, it's much faster to create batch jobs and start the new jobs now!