Every former DoD engineer I've spoken to has worked pretty extensively in Ada. From the Phalanx, to the F-15/F-16. C++ didn't start becoming popular in those domains until the mid-00s. The first fighter jet to use it extensively was the the F-35[1], which many of the engineers attribute to it's early issues[2]; not because C++ was bad, but because so much well-tested and hardened code had to be replaced.
So, wherever these waivers were, they certainly weren't in those spaces.
So, wherever these waivers were, they certainly weren't in those spaces.
1 - https://www.stroustrup.com/JSF-AV-rules.pdf
2 - https://www.defenseone.com/technology/2025/02/f-35-programs-...