They are now using two computers - some sort of voting system. From FOX News:
Boeing changing Max software to use 2 computers
Boeing is working on new software for the 737 Max that will use a second flight control computer to make the system more reliable, solving a problem that surfaced in June with the grounded jet, two people briefed on the matter said Friday.
When finished, the new software will give Boeing a complete package for regulators to evaluate as the company tries to get the Max flying again, according to the people, who didn’t want to be identified because the new software hasn’t been publicly disclosed.
The Max was grounded worldwide after crashes in Indonesia and Ethiopia that killed a total of 346 people.
Makes sense especially if they use two completely different kinds of computer. This way, a bug in one code base will not happen in the other so it will only respond to actual real-world problems.
The man with two watches never knows what time it really is.