As Robert notes, you can do:svn merge -c-Xwhere X is the single rseviion the change happened. the -c is to specify a single rseviion, and leading the rseviion with a '-' indicates it should be reversed.Ash, that's just wrong! The whole point of rseviion control is that it should maintain a complete history of the changes to your code. The metadata associated with each change (the log message, for example) is invaluable in explaining *why* something was done, or why it was wrong. It's one of the major problems I have with most dvcs (git, darcs, etc) solutions; it becomes possible to lose rseviions and revise history.