You can check the current version of apache by running
If you wish to update your 1.3 version of apache to the most recent, run the following:
If you’re using apache 2.x, use “./build apache_2” isntead of apache_mod_ssl.
This should update both the configure options and the version of apache to the most recent version. Once the update has completed, you’ll need to restart apache:
/sbin/service httpd restart