> ## 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.

# Link 4.6

> Images files are now supported by document upload.

<div className="release-meta">
  <span className="release-date">September 12, 2022</span>
  <span className="release-tag" data-changelog-tag="link">Link</span>
</div>

<img src="https://mintcdn.com/argyle/spW0uZwUC4bDyMgL/images/changelog-generic/link.png?fit=max&auto=format&n=spW0uZwUC4bDyMgL&q=85&s=b6ea923ffd5a9eaa46c5b7425326d751" alt="Link update illustration" width="1030" height="290" data-path="images/changelog-generic/link.png" />

The Argyle team has released these updates to Link:

* Users can now upload image files in addition to PDF files through [Document upload](https://argyle.com/docs/workflows/document-processing).
* [Link errors](https://argyle.com/docs/link/reference/error-codes) have been extended to include `card_issuer_unavailable` to aid in troubleshooting updates to direct deposit switching.

Link SDK upgrades are now available:

* [iOS 4.6](https://argyle.com/docs/link/upgrade#ios)
* [Android 4.6](https://argyle.com/docs/link/upgrade#android)
* [React Native 4.6](https://argyle.com/docs/link/upgrade#react-native)
* Web integrations will automatically update to include these latest features.