Can I use MacCVS Pro together with another Macintosh CVS client on the same source tree?
We would strongly discourage this, since MacCVS Pro stores CVS information in your local source tree in a different way to the other Mac CVS clients. These differences are described in detail here. Starting with MacCVS Pro 2.5 we will significantly improve our compatiblity with other CVS clients. Version 2.5 will store revision information and files on disk using the specifications published in the CVS 1.10 documentation. This means MacCVS Pro will work with source trees checked out by the GNU MacCVS client version 3.1 and later.