Very good news for all.
I think that the most important news is that: since Google does not provide zlib licence, I'm now using bitbucket to store the repository, and with ZLIB licence. See in http://bitbucket.org/evandromillian/irrlicht-20xx
This is not a fork of the Irrlicht. My greatest desire is that these changes can be integrated to the core. This is my way to help you, and I hope all of you like.
BlindSide was right about the problem of lack of mipmap support in terrain example. I fixed the mipmap generation and shader resource view creation. Thanks BlindSide.
I fixed some problems with 2D drawing, but GUI needs some fixes yet. Some time ago, bitplane proposed some modifications in GUI skin to help integration with DX 11 driver. Is this can be done?
Thanks once more. I will keep you informed about progress.