https://wccftech.com/older-cpu-coolers-might-have-mounting-pressure-distribution-issues-with-intels-alder-lake-desktop-cpus/

Cooling will be one of the most important factors on Intel's 12th Gen Alder Lake CPU platform besides performance and power consumption. Each cooler manufacturer is doing their best to have the best support for the next-generation CPUs by releasing brand new cooling lineups or providing free LGA 1700 socket upgrade kits but older coolers might have some trouble when paired with the 12th Gen lineup.

To make their existing coolers compatible with Intel's Alder Lake lineup, many cooling brands have released LGA 1700 upgrade kits which feature mounting hardware for the new socket. But the Intel Alder Lake platform isn't just featuring a brand new mounting design but the CPU dimensions itself have changed too.