After 16 years and $8 billion, the military's new GPS software still doesn't work

Congress was told that extensive testing found system issues across all OCX subsystems after 16 years and $8 billion.

Delays in the OCX program forced the Defense Department to retool the legacy GPS control system to manage GPS III satellites.

A 2020 upgrade let the Space Force use some M-code capabilities, which resist jamming and spoofing and apply to about 700 weapon types.