While Linux 7.0 is the next kernel version solely over Linus Torvalds’ numbering preference, there is a notable symbolic change that was sent in overnight for this new kernel merge window: formally concluding the “Rust experiment” with upstream kernel developers now in acceptance that Rust for the Linux kernel is here to stay.
The patch was talked about back in December that the Rust experiment is over and it’s here to stay. There are already uses for Rust in production environments, some Linux distributions shipping with Rust kernel code, and millions of Android devices also using it.



From what I have ready the issue is as follows:
Rust is a memory safe language, because of this Rust enthusiast have been pushing for it. Not a problem there.
The issue is that some have taken it to an extreme, evangelical level where they expect name dropping Rust should open every door and blindly accept every PR
In reality, Rust rewrites can (and have) introduced bugs because you can make shitty code even with the best languages out there