The May preview of NCC 2022 will not include the energy efficiency amendments for a move from 6.0 to 7.0 stars and other thermal related issues as these have not yet been endorsed by Building Ministers. Practitioners can still expect a preview of these amendments prior to adoption. More information on that timing still to come.
NatHERS 2022 Updates
There is a lot of information that has been updated on the NatHERS website, with links to the various update items. The Whole of Home Development Timeline will help you understand how it will roll out. The In Home assessment page will provide details and roll out for that.