P. Chandra

Adds a “Powered by WordPress version (X.Y.Z)” notice anywhere in your blog template. Suggested php code can be cut pasted to add anywhere in your theme template, especially in footer. Will not automatically add the code. See Installation for php code.
Let the world know your blog is powered by the latest version of WordPress.

Display WordPress Version

Adds a "Powered by WordPress version (X.Y.Z)" notice anywhere in your blog template. Suggested php code can be cut pasted to add anywhere in …

Adam Harley (Kawauso)

Removes the WordPress version string from:
<ul>
<li>The <code>$wp_version</code> global variable (frontend only)</li>
<li>Generator tag output (removed entirely)</li>
<li>‘Right Now’ admin dashboard widget (non-admins)</li>
<li>Admin dashboard footer (non-admins)</li>
<li>Scripts and stylesheets enqueued without a version declared</li>
<li>HTTP queries</li>
<li>XML-RPC responses</li>
<li>Pingbacks</li>
<li>Bloginfo() calls</li>
</ul>
Also removes the update notice in the admin for non-admins.

Hide WordPress Version

Removes your WordPress version from various places.

Display WordPress Version vs Hide WordPress Version