version.php looks like this:
<?php
/**
* This holds the version number in a separate file so we can bump it without cluttering the SVN
*/
/**
* The WordPress version string
*
* @global string $wp_version
*/
$wp_version = ‘2.7.1’;
/**
* Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.
*
* @global int $wp_db_version
*/
$wp_db_version = 9872;
?>