We have taken the decision to migrate the code for main CEGUI Mk-2 library and the CELayoutEditor tool from using the CVS revision control system, over to Subversion (SVN). If you're using the stable releases, this will not affect you at all. If you're using code out of some branch of CVS, then you will need to switch to SVN instead - we will not be maintaining both repositories. You will find that for general usage, CVS and SVN are similar, and have similar commands. For Windows users, we heartily recommend the use of TortoiseSVN.
For full details of how to obtain the source code from the subversion repository, please see the page HOWTO: Obtain the library source from subversion]
All 'ceguiaddons' projects will continue to use CVS for revision control.