# Backend API Version 14.7.8

## Features & Benefits

* Enterprise end-user invitations are now sent once every 48 hours to maximize user adoption. Previously sent email invitation codes are invalidated by the most recent code.
* Updated the formatting, layout and branding of general email templates sent from the backend API in accordance with Keeper's new corporate branding.

## Bug Fixes

* Duo 2FA setup was not fully activated in some end-user scenarios after first setup. Fixed.
* Translations missing in invitations and transfer record dialogs in Admin Console.
* Preventing user from changing email address to the same email.
* IP Allowlisting with overlapping ranges caused errors. Fixed.


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# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.keeper.io/release-notes/jp/backend/backend-api/older/backend-api-version-14.7.8.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.