I'm not sure how to find the history of what they did. I know that 21B10 was the PCM re-program and that CSP 21N03 was for new parts. I took my truck to the dealer in response to a CSP showing on FordPass or from a letter in mail, not sure which. The history is not visible on the app. I guess I have to call the service department and have them send me a repair history to see exactly what/when they did it. The $8K was a "ball park" the service tech told me when I asked how much the cam phaser repair would be if I had to pay for it.
Update: I just ran by my local Ford dealer that did my repair. It was 21N03 performed in Aug of 2021. I *should* have the upgraded parts but it seems it's back. Is this what the cam phaser rattle sounds like? It last under 2 seconds on cold start then stops.