Submission limit?

It looks like the last submission is just replacing the number 10 slot (noticed this maybe twice now?).
Total submissions stay at 10.

Is there a limit on historic submissions? Probably fine if there was - can’t really see a reason why more than maybe 3 last submissions need to be kept around.
But then I would expect that the oldest submission gets shuffled of the mortal coil when a new one enters the arena?

Just want to make sure that is not something hinky going on!

Ok, nm, I needed more coffee.

Old builds a are indeed cycling out, new build coming in at slot 10.

All good then.