Zig has not hit 1.0 yet, and as recently as a few months ago completely reworked how every form of IO is written. AFAIK, this wasn't a syntax change, but it changed the function signature or type definition of every piece of code that reads/writes a file, establishes a connection, etc. At the current time, there is little guarantee that the code you write today will still work in 5-10 years time.

Thanks for the info, I was hoping there was something like Rust's editions that would allow for mixing libraries with differing language versions that have breaking changes.