[boost] Regression: release vs. plain?

I have noticed, that the regression reports posted to this list point me to: http://engineering.meta-comm.com/boost-regression/CVS-RC_1_34_0/developer/th... When accessing the regression from the boost homepage I end up on: http://engineering.meta-comm.com/boost-regression/CVS-RC_1_34_0/developer/th... Can anyone please explain the difference, and which tests are relevant for release getting ready? Roland