Hackbard23

You are using the Contact Forms 7 Plugin and are angy about the none HTML 5 Support? 
No Problem. With this Plugin u will have the normal Datepicker & Number Spinner from jQuery in your Internet Explorers and other none HTML5 browsers.
If you have Questions or Feature Request, feel free and contact me.

Contact Form 7 IE DatePicker and Number Spinner Fix

Still works on actual WP 4.7.3. but the need to hack the date format in plugin it self makes it bit awkward.

missing set date format

Works like a charm!

Add the jQuery Datepicker and Spinner functionality to your Contact Form 7

inthiscode

Remove WordPress version number is a plugin to easily hide your WordPress version information from everyone. This plugin has some unique features like:
<ul>
<li>It will hide meta generator from the source code.</li>
<li>It will hide information from the feeds.</li>
<li>It will remove query parameters from CSS and JS</li>
<li>**The best thing about this plugin is that it will only remove qeury parameters from CSS and JS URLs which only have version information, i-e, ver=4.8 **</li>
<li>To check, whether the version info is hidden or not, see the screenshots down below.</li>
</ul>

Remove WordPress Version Number

Don't let anyone know that which WordPress version are you using.

Contact Form 7 IE DatePicker and Number Spinner Fix vs Remove WordPress Version Number