Yep, I've also run into a myriad of gotchas while building things or poking around in written code. Just last week I was trying to build someone's year old repo that blew up on nightly, yet compiled on 0.9 just fine.

But - it's plastered all over the entire project that it is a work in progress. This post itself is talking about how for loops are getting broken. It's an ambitious project with a talented and ambitious team, and their vision and execution so far has been awesome. I'm not using Zig for anything resembling production code at the moment - because it's going to break. But when it stabilizes - there is a lot of potential.