This is the top of the Subversion repository. trunk/ ......... The latest development sources. When people say "Get the head of trunk", they mean the latest revision of this directory tree. If you want the latest code snapshot, download the xmlqstat trunk. branches/ ...... Various development branches. Typically a branch contains a complete copy of trunk/, even if the changes are isolated to one subdirectory. Note that branch copies are generally removed after they've been merged back into trunk, so what's in branches/ now does not reflect all the branches that have ever been created. tags/ .......... Snapshots of releases. As a general policy, we don't change these after they're created; if something needs to change, we move it to branches and work on it there.