Semver specifically allows you to use 0.x for this purpose: https://semver.org/#spec-item-4 https://semver.org/#spec-item-4 > Major version zero (0.y.z) is for

Semver specifically allows you to use 0.x for this purpose: https://semver.org/#spec-item-4 https://semver.org/#spec-item-4 > Major version zero (0.y.z) is for initial development. Anything MAY change at any time. The public API SHOULD NOT be considered stable. That said, I'd argue that this is a little silly. Maybe a better design is to use something I am calling "zero-calver": 0.YYYY.MM.DD. Then use semantic versioning once stability is reached.