What a banger of a release. The new `Io` interface was a huge breaking change for my project, but I made the transition. Zig seems to be pulling the same trick it pulled with allocators: just make it an explicit value that you pass around. Explicit allocators felt obviously right in retrospect, and so far this feels obviously right too.

The approach feels like a natural extension of Zig's philosophy about explicitness around low-level operations (no hidden control flow, no hidden memory allocations, etc.). Your function can be blocking? Communicate that through the function signature! Very in style for the language.