The developer of the largest CMS, Automattic, announced the release of WordPress 4.8.1.
The new minor release contains 29 maintenance fixes and bug fixes that have been observed since its release series 4.8.
One of the biggest improvements in the series is the rich Text widget and Custom HTML widget.
You can read the official announcement from the following link:
Download Wrondress 4.8.1 or visit it Dashboard → Updates and just click on "Update Now."