Due to low popularity/interest, the KnB maps are no longer being integrated as rated maps on the ESOC Patch
since version 188.8.131.52. However, through this thread we are still offering a separate installer to get all the KnB maps easily installed as custom maps for unrated play on any patch. The installer contains latest versions of all KnB maps, as rebalanced by @Durokan
of the ESOC Maps Team. Since this type of installer wasn't available before, getting KnB maps on their own for any patch of your liking is now actually easier than ever before. Enjoy!
Oh, and if you haven't seen the maps yet, check out Durokan's screenshot thread