Updates should not be destructive. Linux doesn't typically overwrite previous kernels, and bootloaders let users choose a kernel during startup.
Furthermore, an immutable OS makes rollback trivial for the entire system, not just the kernel (reboot, select previous configuration).
I hope organizations learn from this, and we move to that model for all major OSes.
Immutability is great, as we know from functional programming. Nix and Guix are pushing these ideas forward, and other OSes should borrow them.
Updates should not be destructive. Linux doesn't typically overwrite previous kernels, and bootloaders let users choose a kernel during startup.
Furthermore, an immutable OS makes rollback trivial for the entire system, not just the kernel (reboot, select previous configuration).
I hope organizations learn from this, and we move to that model for all major OSes.
Immutability is great, as we know from functional programming. Nix and Guix are pushing these ideas forward, and other OSes should borrow them.