Security Onion 20111116 is now available! This resolves the following issue:
Issue 150 - Ensure that OSSEC timezone matches the host's timezone
New users can download and install the new 20111103 ISO image using the instructions here and then follow the In-Place Upgrade instructions below.
Existing Security Onion users can perform an in-place upgrade using the following command (if you're behind a proxy, remember to set your proxy variables as described in the FAQ):
sudo -i "curl -L http://sourceforge.net/projects/security-onion/files/security-onion-upgrade.sh > ~/security-onion-upgrade.sh && bash ~/security-onion-upgrade.sh"
Note that the upgrade script is cumulative and will upgrade any older version of Security Onion to the most recent version (including any updates in between).