- **Upcoming breaking change** : The [Interactions API](https://ai.google.dev/gemini-api/docs/interactions-overview) request and response schema (`outputs` → `steps`) and output format configuration (`response_format`) are changing. The new schema becomes the default on **May 26** and the legacy schema will be removed on **June 8** . See the [migration guide](https://ai.google.dev/gemini-api/docs/interactions-breaking-changes-may-2026) for details.