IIRC there is another raw vulkan library that just generated bindings as well and stayed up to date but that comes with its own issues.
WGPU + Winit + EGUI + EGUI component libs is its own joy of compatibility, but anecdotally they have been updating in reasonable sync. things can get out of hand if you wait too long between updates though!
https://github.com/vulkano-rs/vulkano/blob/master/Cargo.toml...
Maybe that's so they can interop with other crates which use Ash's types?