I have *no idea* why you're being downvoted on this.

If I want to take advantage of a new model, I must validate that the structured queries I've made to the older models still work on the new models.

The last time I did a validation and update. Their Responses. Had. Changed.

API users need dependability, which means they need older models to keep being usable.

> I have no idea why you're being downvoted on this.

I probably offended someone at YC and my account is being punished.