Flox deb appears to install unsupported version of nix

While investigating another issue [1] I came across this Debian installation report which mentions the version of nix. Specifically that only nix version 2.18+ is supported.

But on my flox/nix setup, installed via the Flox deb, I have:

$ flox --version
1.3.1
$ nix --version
nix (Nix) 2.17.1

I have not installed nix from the Ubuntu 22.04 repos (that one is 2.6.0).

So, as far as I can tell, the Flox team is providing an unsupported version of nix in their deb?

[1]: A nix syntax error when I try to install nixGL

the next release of Flox updates to 2.18. as we move forward we will be staying more current with the underlying provided nix version!