> ## 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 5.12

> Duplicate account prevention improvements.

<div className="release-meta">
  <span className="release-date">December 18, 2024</span>
  <span className="release-tag" data-changelog-tag="link">Link</span>
</div>

<img src="https://mintcdn.com/argyle/PXFuBtNZSrQ9sKgY/images/changelog/2024-12-18/link5.12_cover.png?fit=max&auto=format&n=PXFuBtNZSrQ9sKgY&q=85&s=5305c8490806430b7da59c83a6fadc4f" alt="Link 5.12" width="2101" height="1106" data-path="images/changelog/2024-12-18/link5.12_cover.png" />

Link 5.12 is now available, and includes the following updates:

* Duplicate account connections are now prevented during login for certain Items.

<img src="https://mintcdn.com/argyle/PXFuBtNZSrQ9sKgY/images/changelog/2024-12-18/link5.12_1.png?fit=max&auto=format&n=PXFuBtNZSrQ9sKgY&q=85&s=2e7195b667a50875959109e0a6e2f6f6" alt="Image" width="1244" height="1078" data-path="images/changelog/2024-12-18/link5.12_1.png" />

* We’ve updated our data-retrieval loading screens for a smoother, sleeker experience.

<img src="https://mintcdn.com/argyle/PXFuBtNZSrQ9sKgY/images/changelog/2024-12-18/link5.12_2.png?fit=max&auto=format&n=PXFuBtNZSrQ9sKgY&q=85&s=124ae90bfa2233d1f2e0e82a4239c189" alt="Image" width="2068" height="1744" data-path="images/changelog/2024-12-18/link5.12_2.png" />

* Input text boxes now feature more prominent shading to better differentiate them from buttons.

One new [Link error](https://docs.argyle.com/link/reference/error-codes) has been added:

* `duplicate_account` — Login screen notification for certain Items when a user attempts to connect an already-connected account.

Two new [account connection errors](https://docs.argyle.com/api-reference/account-connection-errors) have been added:

* `existing_account_found` — Login help notification for certain Items when a user attempts to connect an already-connected account.
* `all_employers_connected` — Login help notification for certain Items when a user attempts a connection and all accounts associated with their recovery details (name, phone number, and/or email) have already been connected.

Web instances of Link 5 will automatically be upgraded to Link 5.12 and receive these latest features. Visit the following pages in our documentation to upgrade your respective Link SDK:

* [iOS 5.12](https://argyle.com/docs/link/upgrade#ios)
* [Android 5.12](https://argyle.com/docs/link/upgrade#android)
* [React Native 5.12](https://argyle.com/docs/link/upgrade#react-native)
* [Flutter 5.12](https://argyle.com/docs/link/upgrade#flutter)