Hotfix 1 for Content Security 1.4.0 is released. This version fixes intermittent crushes in AdBlock filtering module that resulted in “ICAP Server Error” message from Squid. All users are advised to upgrade. Latest version number is 18.104.22.168bd07.
UPDATE: we also updated the Tiny Proxy Virtual Appliance on the VMWare portal http://www.vmware.com/appliances/directory/960633