> ## Documentation Index
> Fetch the complete documentation index at: https://docs.groovin.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# Changes and compatibility

> How to write integrations that keep working as Groovin evolves.

The REST API version is part of the address: `/v1/`. There is no version header.

## Build for change

* **Ignore fields you do not know.** New fields can appear in an answer at any time. Your code must not break on them.
* **Do not rely on the wording of errors.** Decide from the HTTP status. Texts can improve at any time.
* **Do not rely on the order of fields.**
* **Send only the fields a route documents.** Most routes ignore unknown fields today, but [the connections import](https://docs.groovin.ai/reference/api/start-connections-import.md) refuses them.

## Webhooks

The same applies to webhooks: new fields can be added at any time, so ignore the ones you do not use. A breaking change would ship under a new event type.


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