[jitpack]

Thanks for the feedback and its good to hear your concerns. Yes, you can use strings as tags but we recommend using Semantic Versioning just as GitHub recommends for Releases [1]. At some point we may choose to only build tags that match semantic versioning, to be decided. Unlike using just GitHub as source repositories we have some over what we serve and that's the difference.

If you make a conscious decision to release, add release notes and a tag why would you delete it? Especially if you want others to use your project. Its just not part of usual release workflow. Right now you can still get the binary for a tag that has been deleted because we cache it. We will probably add restrictions to prevent building another binary with the same tag.

[1] https://github.com/blog/1547-release-your-software