Intel's 12th generation desktop processors will be unveiled in the near future. Because Alder Lake-S makes use of the larger lga1700 socket, it is necessary to purchase additional mounting hardware in order to make older coolers compatible. 

Noctua, be quiet, Corsair and DeepCool have recently announced the availability of a mounting kit for their products. The package contains a new backplate as well as mounting brackets for existing coolers. The complementary mounting kit will only be provided to customers who can demonstrate that they have already purchased a lga1700 processor or motherboard. It is possible that shipping fees will apply in some regions, however, it is not clear which ones. You will be charged 6 euros if you do not have an invoice. The following modifications have been made to DeepCool mounting materials:

DeepCool includes free Intel LGA1700 CPU cooler installation kit