# March 20

### Changes

Check out the list of security changes released for Ecwid API in the last 6 months.&#x20;

These changes could break some apps, so we recommend going through the links below to ensure your application is updated or was not affected by the changes.

{% hint style="danger" %}
**Breaking changes!**\
Сhanges listed below may break some apps' logic.
{% endhint %}

<table data-header-hidden><thead><tr><th width="531.203125"></th><th></th></tr></thead><tbody><tr><td><a data-mention href="/pages/zrK53NoDBb25aB1jfBKy">/pages/zrK53NoDBb25aB1jfBKy</a></td><td><a href="/spaces/G9n5VxMY9T0Ob3D56PSD">API Reference</a></td></tr><tr><td><a href="/pages/rASfxnCY7xJXZA9HClKo">Discontinued tokens passing in query params of API calls</a></td><td><a href="/spaces/G9n5VxMY9T0Ob3D56PSD">API Reference</a></td></tr><tr><td><a href="/pages/O5eAvTrDKe9Zom5BLkMJ">New returnUrl format in payment API with enhanced security</a></td><td><a href="/spaces/bMnrDOrph8biE23TpY18">Payment methods</a></td></tr><tr><td><a href="/pages/MaCCPIXve0StaXqxwaqW">OAuth for public apps: GET request type changed to POST</a></td><td><a href="/spaces/uOzT5egoVTAjMJwRuMQT/pages/EdExQpboAhepyFcEourk">Launch apps</a></td></tr></tbody></table>


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