Frank Bueltge

The plugin is not longer supported and is not maintained.
Security your WordPress-Installation and eliminate or replace your wp-version and database-version on easy way with a small plugin, also on Feed and style- and script-urls.
If you’re running an older version of WordPress, anyone can view source to see what attacks might work against your blog. This plugin replace the WP-version with a random string < WP 2.4 and eliminate WP-version > WP 2.4.
Please visit <a href="http://bueltge.de/wordpress-version-verschleiern-plugin/602/" title="Replace WP-Version" rel="nofollow ugc">the official website</a> for further details and the latest information on this plugin.
» more security-informations: <a href="http://wordpress-buch.bueltge.de/wordpress-sicherer-machen/30/" title="WordPress sicherer machen" rel="nofollow ugc">WordPress sicherer machen</a> (german)

Replace WP-Version

Replace the WP-version with a random string < WP 2.4/5 and eliminate WP-version > WP 2.4/5, also on Feed and style- and script-urls

Presslabs

Olar Marius

Autover plugin will automatically version your CSS and JS files. This is especially useful when using a Content Distribution Network (CDN) for delivering static files like CSS and JavaScripts. The plugin appends to the resource URL a numeric version number generated by the filemtime() PHP function (e.g. style.css?ver=1359464809). This means the version number will be updated every time the CSS or JS file is being saved.
IMPORTANT: this plugin only works with CSS and JS files that are enqueued using the standard WordPress functions <a href="https://codex.wordpress.org/Function_Reference/wp_enqueue_style" title="wp_enqueue_style" rel="nofollow ugc">wp_enqueue_style</a> and <a href="https://codex.wordpress.org/Function_Reference/wp_enqueue_script" title="wp_enqueue_script" rel="nofollow ugc">wp_enqueue_script</a> and/or <a href="https://codex.wordpress.org/Plugin_API/Action_Reference/admin_enqueue_style" rel="nofollow ugc">admin_enqueue_style</a>, <a href="https://codex.wordpress.org/Plugin_API/Action_Reference/admin_enqueue_scripts" rel="nofollow ugc">admin_enqueue_script</a>.

Autover

Excellent plugin to lose your CDN cache without any other interaction.

Working perfect

Autover plugin will automatically version your CSS and JS files in the generated html page (e.g. style.css?ver=1359464809).

Replace WP-Version vs Autover