The rate of development for the Linux kernel is unprecedented, with a new major release approximately every two to three months. Each release offers several new features and improvements that a lot of people could take advantage of to make their computing experience faster, more efficient, or better in other ways.
The problem, however, is that you usually can’t take advantage of these new kernel releases as soon as they come out — you have to wait until your distribution comes out with a new release that packs a newer kernel with it.