Im »phpGroupWare Installation and security HOWTO« (http://free-source.com/files/phpgw-howto.html) steht:
»Before we start installing, we’ll get the latest patches from the phpgroupware stable CVS tree. The package you downloaded will already have the CVS directories in it to tell the cvs client what to do. This step is optional but highly recommended. Run the following command anytime you want to get the latest patches from the stable cvs tree.
$cd phpgroupware $cvs -z6 update -dP > cvs.log
You will likely get a warning about a missing .cvspass file, this is normal and harmless. You will then see cvs go through every directory looking for files to update. This will also create a cvs.log file showing you what files updated. It is recommended you review this log to check for errors after each update.«