Paul McKenney has announced a new
version of his book Is
Parallel Programming Hard, And, If So, What Can You Do About It?.

This release contains a new section on thermal throttling (along
with a new cartoon), improvements to the memory-ordering chapter
(including intuitive subsets of the Linux-kernel memory model),
fixes to the deferred-processing chapter, additional
clocksource-deviation material to the “What Time Is It?” section,
and numerous fixes inspired by questions and comments from readers.

Source: LWN.net – McKenney: Parallel Programming: June 2023 Update