Your API has thousands of LLM consumers. None of them can read your changelog.

Sometime in the last eighteen months, the consumer base of every public API changed, and almost nobody updated their testing strategy. If you publish an API today — even an internal one with an OpenAPI spec on a Confluence page — you have consumers you didn't onboard, didn't issue a key to, didn't notify on deprecation, and can't reach with a changelog. Those consumers are language models, and the agents people are building on top of them. Some of them learned your API last week. Some learned i...