Surprise! Everything everyone types into Microsoft software is recorded and uploaded!

I'd bet good money, they aren't ingesting, retraining, and pushing production copilot models on a subdaily basis.

i think that's kind of the point behind gpt style models, updates are cheap ... not only in terms of source material but also feedback on which suggestions are accepted.

I think you need to actually get the new data from Github and finetune the model. Maybe it's done very frequently, but unlikely.