Its very rare that your ecu is "updated" on a service unless there is a safety issue with the software version its running so no probably not. The dealer will (should) inform you before any procedure such as an ecu software update takes place.
 
Thats good to know. Just twice since its hesitating when put in 3rd and foot down. Like the power is trying get through but its not.

Ill have keep my eye on it.
 
It could be a small amount of air in the fuel system if the fuel filter was changed.