Those of you wanting to stay current with the latest Xonotic builds now have a new option – an automatic update script for downloading autobuilds! Released just yesterday by divVerent, this script uses rsync to download only the files you need to keep current. This will save you (and the project, of course) a bunch of bandwidth.
To run the script, extract the zip file linked above to a folder of your choosing, then run the file appropriate to your environment (update-xonotic.sh for Linux and Mac, update-xonotic.bat for Windows) to start the update process. If you do not currently have a Xonotic build installed to that directory one will be downloaded. If you have a preexisting Xonotic build installed there it will be updated to the most recent daily build of the master branch.
Take note that this script is intended for players – developers and testers will most likely want to stay with the git version and its corresponding “all” script.
EDIT: The URL is dead, the script comes now with the release and you can find it at ~\Xonotic\misc\tools\rsync-updater