> ## 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 5.18

> Document uploads can be restricted to PDF only.

<div className="release-meta">
  <span className="release-date">February 12, 2026</span>
  <span className="release-tag" data-changelog-tag="link">Link</span>
</div>

<img src="https://mintcdn.com/argyle/PXFuBtNZSrQ9sKgY/images/changelog/2026-02-12/cover_link518.png?fit=max&auto=format&n=PXFuBtNZSrQ9sKgY&q=85&s=9897b59ff142511cf6286e882ecad19f" alt="Link 5.18" width="1991" height="1117" data-path="images/changelog/2026-02-12/cover_link518.png" />

Document uploads can be restricted to PDF file types by [adjusting your settings](https://docs.argyle.com/workflows/document-processing#restricting-to-only-pdfs) in the Flows section of Console. Link will adjust accordingly to guide users.

<img src="https://mintcdn.com/argyle/PXFuBtNZSrQ9sKgY/images/changelog/2026-02-12/link518.png?fit=max&auto=format&n=PXFuBtNZSrQ9sKgY&q=85&s=8c26a85ef42d5c8ab14c29baa7700bb6" alt="Image" width="1470" height="1096" data-path="images/changelog/2026-02-12/link518.png" />

Web instances of Link 5 will automatically be upgraded to Link 5.18 and receive these latest features.