Just a single commit wherein DHH changes all the version numbers from 3.0.pre to 3.0.0.beta (curious, what's with the extra zero all of a sudden, or rather lack

Just a single commit wherein DHH changes all the version numbers from 3.0.pre to 3.0.0.beta (curious, what's with the extra zero all of a sudden, or rather lack of it prior?). Isn't that what releasing open source software is all about? I recall my astonishment recently when tagging 1.0 of my project on GitHub and making a blog post about it caused some actual excitement from people. Amazing to me was that the code hadn't changed dramatically for weeks; bumping the version number was the only real significant difference. I think I understand the excitement of finally seeing a project "done," yet still it feels a little odd when you're the project owner and calling something "done" can be more like a fleeting feeling rather than an absolute.