Plugin Name

Wordpress Remove Version securely removes the version number from both the site header and the rss feed using the the_generator filter.

Just upload the file to your plugins directory or install via the dashboard and activate. I did notice that the rss feeds are cached and they need to be flushed. There are many plugins in the plugins directory that accomplishes this.If you do not want to use a plugin you can wait for the cache to automatically refresh but when you post a new post the cache will refresh and generate a new post.