Better HTTP Redirects makes your Blog's redirects to play more nicely the HTTP standards.
"Better HTTP Redirects" works out of the box but for a better integration you can make use of the following:
$hypertext = apply_filters('redirect_hypertext', $hypertext, $location, $status);
This file readme.txt has been created in the intention to provide data to be displayed on the wordpress.org plugin repository website. As always, for anything concrete and precise, refer to the plugin sourcecode itself, it ships with phpdoc style comments.