Title: Version 4.0.25
Author: Akira Tachibana
Published: December 30, 2018

---

# Version 4.0.25

## In this article

 * [Installation/Update Information](https://wordpress.org/documentation/wordpress-version/version-4-0-25/?output_format=md#installation-update-information)
 * [Summary](https://wordpress.org/documentation/wordpress-version/version-4-0-25/?output_format=md#summary)
 * [List of Files Revised](https://wordpress.org/documentation/wordpress-version/version-4-0-25/?output_format=md#list-of-files-revised)

[ Back to top](https://wordpress.org/documentation/wordpress-version/version-4-0-25/?output_format=md#wp--skip-link--target)

On Dec. 12, 2018, WordPress 4.0.25 was released to the public.

## 󠀁[Installation/Update Information](https://wordpress.org/documentation/wordpress-version/version-4-0-25/?output_format=md#installation-update-information)󠁿

To download WordPress 4.0.25, update automatically from the Dashboard > Updates 
menu in your site’s admin area or visit [https://wordpress.org/download/release-archive/](https://wordpress.org/download/release-archive/).

For step-by-step instructions on installing and updating WordPress:

 *  [Updating WordPress](https://wordpress.org/documentation/article/updating-wordpress/)

If you are new to WordPress, we recommend that you begin with the following:

 *  [New To WordPress – Where to Start](https://wordpress.org/support/article/new_to_wordpress_-_where_to_start/?output_format=md)
 *  [First Steps With WordPress](https://wordpress.org/support/article/first-steps-with-wordpress/?output_format=md)
   or [Upgrading WordPress Extended](https://wordpress.org/documentation/article/upgrading-wordpress-extended-instructions/)
 *  [WordPress Lessons](https://wordpress.org/support/article/wordpress-lessons/?output_format=md)

## 󠀁[Summary](https://wordpress.org/documentation/wordpress-version/version-4-0-25/?output_format=md#summary)󠁿

From the [WordPress 5.0.1 release post](https://wordpress.org/news/2018/12/wordpress-5-0-1-security-release/),
WordPress versions 5.0 and earlier are affected by the bugs described in the post.

## 󠀁[List of Files Revised](https://wordpress.org/documentation/wordpress-version/version-4-0-25/?output_format=md#list-of-files-revised)󠁿

    ```wp-block-preformatted
    /wp-admin/includes/ajax-actions.php
    /wp-admin/includes/class-wp-screen.php
    /wp-admin/includes/post.php
    /wp-admin/about.php
    /wp-admin/post.php
    /wp-includes/class-wp.php
    /wp-includes/functions.php
    /wp-includes/general-template.php
    /wp-includes/kses.php
    /wp-includes/ms-deprecated.php
    /wp-includes/version.php
    /wp-activate.php
    /wp-login.php
    ```

First published

December 30, 2018

Last updated