thanks for the catch, what we meant is that we’re not committing to strict stability guarantees yet, so APIs may still change as we iterate toward 1.0.
I will say that this doesn't seem to be how semver is used in the wild, which I would argue is more important. I personally didn't know about this rule. Tons of Rust projects follow semver don't follow it either, and just stay on 0.x.y forever.