B777 Undifferentiated or Other Model
Flight Crew Air Transport Pilot (ATP)
Fatigue; Situational Awareness
Deviation / Discrepancy - Procedural Published Material / Policy; Inflight Event / Encounter Fuel Issue
General None Reported / Taken
Human Factors
Prior to pushback we received an ACARS 'release 2 sent for ZFW increase'.  Release 2 printed shortly after. This is a very common occurrence before departures to have an adjustment of the ZFW. All 4 of us found the ZFW change on Release 2 and compared the new TOG weight and LW.  We were good for departure. What Dispatch did not include in the Dispatcher Remarks and ACARS message was all of the other changes. It was never communicated to us that:1. An alternate was added2. 15.0 extra fuel was added3. Minimum Takeoff Fuel was raised 4. Gate and planned TO fuel all raised.I did not catch the additional changes in the new Release 2. We rely on the Dispatcher remarks section and ACARS messages to alert us to the Dispatcher changes. Since the only message we received was for the ZFW raise I did not see the rest of the Release changes. It was midnight and we were getting close to [departure] time and we were under pressure to get off before Minimum Takeoff Fuel was reached on the Release 1. We were over an hour late and starting to get fatigued. We departed below the Release 2 Minimum Takeoff Fuel. From now on I will look more closely at the Release for changes that are not coordinated with the Captain. I can no longer rely on the Dispatcher Remarks and ACARS messages for changes. I need to stop and review every line on the new Release to make sure all changes have been accounted for and will call the dispatcher to confirm. Enroute we decided to drop MEL and the additional fuel which then allowed the flight to continue to [our destination] legally.
Later on inflight when we got near the redispatch point our fuel was going to be about 1000 pounds short according to the new plan the Dispatcher had sent us. We were still using the old flight plan which showed us ahead on fuel. So the Dispatcher told us we can drop ZZZZ as an alternate and we would have no problem making our redispatch fuel. It was at this point we found out the Dispatcher had added an alternate without us knowing. We agreed to drop the alternate; easily made our re-dispatch fuel and went on to [our destination].
B777 flight crew reported they did not catch a fuel increase due an alternate being added prior to departure; and they departed with less than minimum fuel.