indextwo

Whenever WordPress performs a core update, it automatically pulls down the following files onto the root:
<ul>
<li><code>license.txt</code></li>
<li><code>readme.html</code></li>
<li><code>wp-config-sample.php</code></li>
</ul>
These files aren’t an inherent security risk by themselves; however they are uneccessary clutter on the root of your site (why would you want a <code>wp-config-sample.php</code> file on your production website?!); and it’s just another easy-to-read vector confirming that you have a WordPress site for script-kiddies to scrape and attack.
Simply install this plugin and it will clean up those files every time you perform a core WordPress update.

Core Files Update Cleanup

This plugin deletes the unnecessary license.txt, readme.html and wp-config-sample.php files after a core update.

Reisetiger

<h4>WordPress Core Downgrade/Update</h4>
EN: The plugin “WP Downgrade” forces the WordPress update routine to perform the installation of a specified WordPress release. The Core Release you specify is then downloaded from wordpress.org and installed as would any regular update. You can permanently stay on a previous version of your choice or update selected.
The user Gahapati describes it so much better than I can. (Thank you!)
<blockquote>
WP Downgrade | Specific Core Version has the potential for becoming one of the best-loved plugins among those, who simply cannot update to the latest WP release.
In the past the latest WP release was the only offering for WP’s Automatic Update routine. This left all those behind, who have to wait with Core updates, until their plugins become compatible with newer WP releases. When this finally happens, more often than not there has already been yet another Core update. In the end a dreaded, cumbersome, time-consuming and error-prone Manual Update used to be the only way to go.
With WP Downgrade | Specific Core Version this is now a thing of the past. Anyone who lags behind the latest WP release is now able to use Automatic Updates even to lower WP versions. What WP Downgrade does simply is to make WP believe that the version you want to update to actually is the latest version. Because of this, there is no difference to updating to the latest version.
For security reasons I think this is a must-have plugin for anyone running a “seasoned” WP installation, and it actually should be a Core feature to be able to update not to the latest WP release exclusively but instead to have a choice among secure releases.
</blockquote>
New advanced option: You are now able to manually edit the download link, if necessary. This allows, for example, a change of language for wp-core. Or you can get the release from another source.
DE: Das Plugin “WP Downgrade” zwingt die WordPress-interne Update-Funktion, ein bestimmtes WordPress-Release zu installieren. Das definierte Core-Release wird wie ein reguläres Update von wordpress.org bezogen und direkt installiert. 
Das klappt wie gewohnt per Update-Button im Admin-Bereich oder per Auto-Update. Die Versionsnummer kann sowohl höher als auch niedriger sein als die aktuell installierte Version. Somit ist also auch ein Rollback auf frühere Releases möglich. Dein WordPress wird solange auf dieser Version bleiben, bis du eine neue Versionsnummer in WP-Downgrade hinterlegst (oder bis du die Versionsnummer leerst oder das Plugin deaktivierst).
<h4>Achtung: Nutzung auf eigene Gefahr!</h4>
WP-Downgrade funktioniert normalerweise prima. Trotzdem ist ein Versionswechsel immer ein riskanter Eingriff! Du solltest auf jeden Fall vorher ein Backup deiner Dateien und der Datenbank anlegen! Ich übernehme keinerlei Gewähr für deine Installation und werde auch keinen Support leisten.
<h4>Plugin hilfreich? Sag Danke!</h4>
Ich stelle das Plugin kostenlos zur Verfügung, freue mich aber sehr über Spenden oder einen Link auf meinen Reiseblog <a href="https://www.reisetiger.net" title="Reisetiger" rel="nofollow ugc">https://www.reisetiger.net</a>! 🙂 
Bitte bewerte WP Downgrade, wenn es für dich nützlich ist!

WP Downgrade | Specific Core Version

Automatically downgrad or update to any WordPress version you want directly from the backend.

Core Files Update Cleanup vs WP Downgrade | Specific Core Version