# iOS Version 16.8.1

## Features

* **IOS-6663**: Recovery Phrase. We have upgraded our account recovery process with a new and more secure 24-word “recovery phrase” feature. Read more on the [Keeper Blog](https://www.keepersecurity.com/blog/2023/04/24/keeper-introduces-24-word-recovery-phrases/).
* **IOS-6664**: Automatically upgrade any account to 1,000,000 PBKDF2 iterations if the account is using less than 1,000,000.
* **IOS-6665**: Upgrade of the Transmission Key encryption channel to use Elliptic Curve.

## Bug Fixes

* **IOS-6722:** Crash when attempting to login to a vault that contains a corrupt record.
* **IOS-6723**: Generated Password Complexity enforcement is not being enforced when a user changes their Master Password.
* **IOS-6738**: Enterprise-linked personal account users are being prompted to change their password to a 12-character password on first login.


---

# 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/mobile/apple-ios/older/ios-version-16.8.1.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.