For future reference, I’ve started keeping my custom tweaked version of the Linux kernel for WSL on GitHub, over at cerebrate/WSL2-Linux-Kernel. Packages for historical variants can be downloaded from the releases over there, as well as the current version from the wsl-transdebian repository.
If you want to be notified of every update, you should go star it over there. I’m only going to be posting the significant changes (to the configuration, not the version updates) over here in the future.