Edward Caissie

Show off you are an early adopter of WordPress by displaying a message showing what version you are running (alpha, beta, release candidate and/or stable versions). 
* Copyright 2012-2015 Edward Caissie (email : edward.caissie@gmail.com)
This program is free software; you can redistribute it and/or modify 
 it under the terms of the GNU General Public License version 2, 
 as published by the Free Software Foundation.
You may NOT assume that you can use any other version of the GPL.
This program is distributed in the hope that it will be useful, 
 but WITHOUT ANY WARRANTY; without even the implied warranty of 
 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 
 GNU General Public License for more details.
You should have received a copy of the GNU General Public License 
 along with this program; if not, write to the Free Software 
 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
The license for this software can also likely be found here: 
 http://www.gnu.org/licenses/gpl-2.0.html
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<li>Please note, support may be available on the WordPress Support forums; but, it may be faster to visit http://buynowshop.com/plugins/bns-early-adopter/ and leave a comment with the issue you are experiencing.</li>
</ul>

BNS Early Adopter

Show off you are an early adopter of WordPress

naganandhini

Removes WordPress version number , shortlink, wlwmanifest and RSD
A simple plugin to prevent people from knowing what version of WordPress you’re using via your HTML source and to cleanup the unwanted header tags generated by wordpress. 
Find more about the plugin here: http://www.naganandhini.com/remove-wp-version-and-shortlink-wordpress-plugin/

Remove WP version and shortlink

Removes WordPress version number , shortlink, wlwmanifest and RSD

BNS Early Adopter vs Remove WP version and shortlink