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

# Changelog

> Changes to the public integration documentation.

## September 20, 2026

* Published the Plane Business documentation and OpenAPI reference.
* Added step-by-step card issuance, top-up, card-control, and funding guides.
* Documented webhook signing, deduplication, and delivery retries.
* Added error handling, pagination, verification, and go-live guidance.

Live card and funding activation remains restricted. Documentation updates do not enable a capability or change your company's approval state.

## API compatibility

The public path prefix is `/api/v1`. No automatic migration to a new major API version is implied. Pin your integration to the documented fields and handle additional response fields without failing. There is no published official SDK yet; the examples use HTTP directly.