Doest anybody know the release of nintendo wii ver 4.0 homebrew channel.?

4.0 will not allow the Homebrew Channel installer to run, and there isn't a newer version yet. If you installed HBC before updating to 4.0, it will not remove it, but an official Nintendo update to 4.0 will NOT allow you to run the HBC installer, even if you wanted to update HBC itself. They haven't made a new HBC installer which can get around this yet, even if you had HBC previously installed.