Part 107 SUAS Pilot here... I have a question concerning updating firmware. It was my understanding during my course of study for Part 107 that in order to comply with FAA Regulations our SUAS must maintain a log book noting any maintenance performed (ie Firmware Updates, date complete etc...) Hypothetical question... We have an incident during a commercial application that requires FAA notification. It is determined that at the time of the incident that updated firmware was not installed (for whatever reason, maybe you are concerned about it's performance).