Boeing said it has completed the software update for its troubled 737 MAX fleet, which was grounded after two deadly crashes.
In a statement, the planemaker said it has flown the aircraft with the updated software on 207 flights for more than 360 hours.
The software will now need to be reviewed by the US Federal Aviation Administration and its counterparts in other countries before the planes can return to service.
"We're committed to providing the FAA and global regulators all the information they need, and to getting it right. We're making clear and steady progress and are confident that the 737 Max with updated MCAS software will be one of the safest airplanes ever to fly," Boeing CEO Dennis Muilenburg said in a statement.
Boeing had grounded its 370 Max jets around the world since mid-March after investigations into the crashes pointed to an automated system that hindered pilot control after takeoff.

Israel pounds Lebanon, expands ground operations past security zone
Remnants of Assad's chemical weapons programme recovered
Trump declares himself in perfect health after physical exam
Rubio says Iran deal could take days as US launches fresh strikes
4 killed after train collides with school minivan in Belgium
Israeli strikes kill seven people in Gaza, medics say
Philippines ends rescue efforts as hope fades for victims of building collapse
Rescue team confident of reaching 7 trapped for days in Laos cave
