[dk-]

not likely the NG didn't add new systems. not saying other cost-cutting won't be exposed but nothing as egregious as MCAS.

the MAX added new engines, which required forward placement on the wings, which changed COG, which necessitated MCAS.

[Merrill]

They changed flight control computers from Honeywell to Collins when going from the 737 to the 737 NG. Seems like a new system.

[DuskStar]

Right, but the recent change was from the 737 NG to the 737 MAX.