Buffering threshold and instant acknowledgement in 6.8.1

Before version 6.8.1 we had to set server.instantAcknowledgement = true if we wanted to record the incoming data as soon as it arrives.

Now, we have server.buffering.threshold that replaces server.instantAcknowledgement and it seems it works in the opposite way. If we want to record the incoming data as soon as it arrives server.buffering.threshold sholuld be set to false.

1. Is my understanding correct?
2. Do we need to explicitly set server.buffering.threshold = false or if the setting is not added the value will be false by default?

You have to set it to 0 if you don't want buffering.

Sorry, I copied the wrong config variable by mistake. Corrected question:

Now, we have server.delayAcknowledgement that replaces server.instantAcknowledgement and it seems it works in the opposite way. If we want to record the incoming data as soon as it arrives server.delayAcknowledgement sholuld be set to false.

Is my understanding correct?
Do we need to explicitly set server.delayAcknowledgement = false or if the setting is not added the value will be false by default?

In essence what I need to understand is: do we need to explicitly set <entry key="server.delayAcknowledgement">false</entry> for instant acknowledgement or if the config entry is missing, the data will be processed right away as well?

server.delayAcknowledgement = false is the default.

Thanks!