\
it's mostly backend stuff iirc but there's `@branchHint` (which works kinda like `__builtin_expect`), complete removal of `usingnamespace`, and new APIs for `build.zig`, which is a breaking change, at the top of my head
oh yeah and there's this [labeled switch/continue](http://github.com/ziglang/zig/pull/21257#issuecomment-2336865183), which imo is just a glorified labeled block, but it may be useful for me in the future?
what's not working for you in master?
