Choosing Error / Change Tracking Software for Developing Mathematica CVS Vs. Application Suite Bugzilla?

I am developing a math application package using a workbench, and it is starting to get complicated with several versions and components. I read in some math documents ( http://reference.wolfram.com/mathematica/tutorial/BuildingLargeSoftwareSystemsInMathematica.html Paragraph: Use Source Control) that CVS was a good system, but I checked it ( http: //www.nongnu .org / cvs / ), and it doesn't seem to be in very active development, and the download page is cryptic.

Am I going to the wrong page for CVS? I just got this page http://ximbiot.com/cvs/wiki/Main%20Page#CVS_Downloads for CVS, but a clear indication of where to download

In another project that I managed many years ago, the developers used bugzilla and were quite happy with it. I went to the bugzilla page and it seems to be the best choice ( http://www.bugzilla.org/download/#howtoget ).

Any tips from active Mathematica developers?

Or are both CVS and bugzilla complementary? In this case, it would be nice to show where it is best to get CVS with clearer instructions for installation and use.