It’s out. I’m sorry I forgot about the annoying cmake-options bug, otherwise it would have been out sooner.
Besides that bugfix the major change is that the branch, tag, and module-base-path options now do not add the module name for you when making up the final URL (for non-KDE modules), you need to do that yourself. The reason is that many modules are tagged or branched without ending in their module names now, so it was simply impossible without using override-url to check them out.
If you use kdesupport with kdesupport-for-4.2, you need to adjust your tag to read “kdesupport-for-4.2/kdesupport” now.