There is no auto-update option at this time. I have always wanted to implement this function directly in the code, but I never did because I would have needed to store the version number of the WURFL that is installed and periodically check if a newer version is available. In the current development branch, this version number and last updated date are stored in a table, so I will probably include this auto-update functionality in 2.1.3.
Until then, if you are on Linux you can use a crontab entry like this:
50 1 * * 0 root wget -O - 2>&1 > /dev/null -T0
http://www.yourdomain.com/Tera-WURFL/ad ... rce=remoteThat would update Tera-WURFL every Sunday at 1:50am
See this site for more crontab examples:
http://www.pantz.org/software/cron/croninfo.html