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

# API breaking changes

> file_url field will require basic authentication headers on April 8, 2024.

<div className="release-meta">
  <span className="release-date">March 8, 2024</span>
  <span className="release-tag" data-changelog-tag="api">API</span>
  <span className="release-tag" data-changelog-tag="breaking">Breaking</span>
</div>

<img src="https://mintcdn.com/argyle/spW0uZwUC4bDyMgL/images/changelog-generic/api.png?fit=max&auto=format&n=spW0uZwUC4bDyMgL&q=85&s=1537fc09ccdfb211eeafbc1178e91f0b" alt="API update illustration" width="1030" height="290" data-path="images/changelog-generic/api.png" />

On **April 8, 2024** the `file_url` [field](https://argyle.com/docs/api-reference/reports#object-file_url) returned by the `/v2/reports` endpoint will begin redirecting to a PDF download page that requires Argyle [basic authentication headers](https://argyle.com/docs/api-guide/overview#authentication).

Please ensure your HTTP client or library is configured to pursue redirects and append authentication headers to these requests to continue successfully retrieving report PDFs via the API following this adjustment.