cvs without a server

[Ed Sutter]

Hi,
I posted a question the other day and didn't get a response.
I'm hoping that the lack of response was not due to the
lack of an answer, so I'll rephrase the question...

I manage/maintain a small open source project.  Internally I
was using SourceSafe and I distributed the project to folks as
a tarball consisting of the latest version of all the source
files.  This made it difficult for users to keep track of
changes. To improve this process, I recently moved over to CVS
for my internal change-control.  Unfortunately I can't provide
access to the repository using a CVS server; but I'm still hoping
that there is a way for CVS to allow users of the project to keep
track of changes between their current tree and a newer tree.

I know I can simply provide a tarball of the entire repository, but
then how does a user figure out what changes have been made since the
last time they downloaded the repository?

Is there any common/recommended way to do this?
Thanks
Ed