How does semver handle the case where I have v2.x.y and I want to change the API but I need to experiment for a few releases? I want to get to a v3.x.y but I n

How does semver handle the case where I have v2.x.y and I want to change the API but I need to experiment for a few releases? I want to get to a v3.x.y but I need. a bunch of pre-3 major versions first. Linux kernel used to do with odd numbers for experimental versions and even numbers for stable versions.