Minecraft 1.9 is out on pre-release and i wish to use it, but i cant find how to install it, all tutorials i look up say "put it in the bin folder" when using minecraft launcher 1.6.11 has no bin folder, and if i attempt to do it the manual way (creating new mc version and transfering files) the files of the 1.9 minecraft.jar folder are not compatable with the launcher... help?