Today is the day of short articles. This one is really trivial. You'll agree as soon as you read it.
TortoiseSVN makes moving versioned files very easy. Moving files is the usual Windows procedure: hold down the right mouse button over the set of files to move. Then drag them to the new folder and select "SVN move versioned files here".
Well that's easy. But there is one pitfall that might make you ask: "Why the hell is no such menu item on my Windows box?"
The answer ist really really (believe me) REALLY simple. Subversion can move versioned files to versioned folders only! So: