Until the tooling introduces a breaking change or new cooler way to do things appear and people stop supporting the old way because "everyone switched anyway". Been there, done that.
For those not familiar:
Nix tooling introduced flakes. The community generally likes this feature since it provides a couple of significant improvements on how nix gets used.
There was a breaking change between 2.3 and 2.4 for even the non-flake code; but, that was partly because 2.4 was a huge release. (2.3 released in 2019/09; 2.4 in 2021/11). Releases since then have been smaller and more frequent.
Yeah, if any of that is even remotely true then something is horribly wrong with your system.
Most of the time the deprecations require no action on my part, I simply rather keep things tidy and make the warnings go away.
> In a way, it’s reassuring to see that niche Linux distributions have changed so little in the decade since I last used one.
You are misunderstanding what I am saying. The situation is very different. There are still Linux/Wayland/NVidia/Whatever issues, but configuring NixOS is not among them.
Here to confirm that you can usually ignore those warnings for a year or more, hahaha.