Letade på nätet efter lite info om taggar i Subversion. Hittade bland annat detta guldkorn i en Subversion HOWTO. Om länken blir trasig vill jag inte förlora detta fina stycke, så jag citerar också:

“There are no differences between branches and tags in Subversion. In fact, Subversion doesn’t even know the concept of branches or tags: everything is a file or a directory for it.

A branch or a tag is nothing more than a copy of your files under a different path. It is an O(1) operation in time and disk space, so there’s no harm copying everything.”