According to their website, you can use *any* of the 6th generation processors that are available in the LGA1151 package.For a complete list, use these links:
Edit: Links fixed
Thank you Scott for the information provided.
Additionally, in this website by clicking on "CPU Support List" you would be able to get a list of compatible products and the since which BIOS release are compatible.
If you require any further information or support, do not hesitate to contact us back.