Version 4.9.9

On Dec. 12, 2018, WordPress 4.9.9 was released to the public.

Installation/Update Information

To download WordPress 4.9.9, update automatically from the Dashboard > Updates menu in your site’s admin area or visit https://wordpress.org/download/release-archive/.

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

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

Summary

From the WordPress 5.0.1 release post, WordPress versions 5.0 and earlier are affected by the bugs described in the post.

List of Files Revised

/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

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