Although I understand that upgrading LLVM version is a lot of work, it's a bit frustating that loop vectorization is still disabled.

The fix could not be backported to LLVM 22 because it changed the LLVM library ABI. We also could not skip straight to LLVM 23 because that would make life harder for distro package maintainers.

You should not worry. They said they would make a short release cycle for updating to 23.