> ## 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

> Legacy API v1 will be retired on March 31, 2025.

<div className="release-meta">
  <span className="release-date">November 15, 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 **March 31, 2025** we will be retiring our legacy API v1. Any calls made to `/v1` endpoints after this date will no longer function. Please complete your transition to API v2, which was [introduced in April 2023](https://argyle.com/blog/announcing-argyle-2/).

To ensure a smooth transition:

* Review our [Upgrade Guide](https://docs.argyle.com/upgrade-guide) for details on migrating to API v2.
* If you are already using [API v2](https://docs.argyle.com/api-reference/users) exclusively, no further action is needed.
* For help or assistance, contact us at **[support@argyle.com](mailto:support@argyle.com)** or reach out to your customer success manager.