> ## Documentation Index
> Fetch the complete documentation index at: https://docs.mx.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Connect Widget Changelog

## 2025

<Update label="05/14/2025" tags={["Connect Widget"]}>
  Added: Initial Data Ready widget event. Only applies if you're using Platform API v20250224.
</Update>

<Update label="04/23/2025" tags={["Connect Widget"]}>
  Added: `microdeposit_guid` metadata parameter to the Microdeposit Comeback, Primary Action Selected widget event.
</Update>

<Update label="01/31/2025" tags={["Connect Widget"]}>
  Added: The `x_callback_payload` field will return in the `metadata` of each Widget Event if the `X-CALLBACK-PAYLOAD` header was set in the URL request.
</Update>

## 2024

<Update label="11/01/2024" tags={["Connect Widget"]}>
  Added: When a new member is created inside of the widget, the `use_cases` that were provided in the widget URL request will be saved to that member. This only applies if you've opted in to using use cases.
</Update>

<Update label="11/01/2024" tags={["Connect Widget"]}>
  Added: When the widget makes a data request for an existing member, it will update the member with any new `use_cases` that were provided. This only applies if you've opted in to using use cases.
</Update>

<Update label="04/01/2024" tags={["Connect Widget"]}>
  Added: Invalid Data postMessage with initial code of 1000.
</Update>

## 2023

<Update label="11/28/2023" tags={["Personal Finance Management", "Connect Widget"]}>
  Added: The request widget URL endpoint now accepts the optional `enable_app2app` parameter.
</Update>

<Update label="02/09/2023" tags={["Personal Finance Management", "Connect Widget"]}>
  Update: The Connect Widget will now issue a postMessage when there are no valid DDA account in verification mode, and the user selects OK on the associated error screen.
</Update>

## 2022

<Update label="07/20/2022" tags={["Personal Finance Management", "Connect Widget"]}>
  Removed: `verifyError` step has been removed and is no longer part of the Connect Widget flow. The widget now handles this scenario in the connecting step. The most common scenario that led users to this step has been optimized and no longer happens.
</Update>

<Update label="06/27/2022" tags={["Personal Finance Management", "Connect Widget"]}>
  Updated: `wait_for_full_aggregation` is no longer used. Widget behaves as if it was `true`.
</Update>

<Update label="05/16/2022" tags={["Personal Finance Management", "Connect Widget"]}>
  Updated: Renamed Connect Widget's `stepChange`'s `selectMember` step to `verifyExistingMember` for clarification.
</Update>

<Update label="03/11/2022" tags={["Personal Finance Management", "Connect Widget", "SSO V3"]}>
  Added: `disable_background_agg` is now available as an option for the Connect Widget.
</Update>

## 2021

<Update label="11/02/2021" tags={["Personal Finance Management", "Connect Widget", "SSO V3"]}>
  Added: `es` is now available as a language option for the Connect Widget.
</Update>

<Update label="11/02/2021" tags={["Personal Finance Management", "Connect Widget"]}>
  Removed: Support for IE11.
</Update>

<Update label="03/30/2021" tags={["Personal Finance Management", "Connect Widget"]}>
  Added: Member connected, primary action selected postMessage for Connect Widget.
</Update>

## 2020

<Update label="08/10/2020" tags={["Personal Finance Management", "Connect Widget"]}>
  Added: New mx/connect/oauthError postMessage(v4) event for the Connect Widget.
</Update>