The development of FreeBSD ports is done in Subversion nowadays. By February 28th 2013, the FreeBSD ports tree will no longer be exported to CVS. Therefore ports tree updates via CVS, CVSup or csup(1) will no longer be available after that date. All users who use CVS, CVSup or csup(1) to update the ports tree are encouraged to switch to portsnap(8) or for users which need more control over their ports collection checkout, use Subversion directly. More information are available in the announcement mail on the FreeBSD ports announce mailing list.