Version 0.8 just got out[1]. For the next one, I'll try to focus on making the codebase fully ready for multi-entities and introduce a Project Board. Later we can add support for code review!
If you are looking for how it works, you can have a look at the data model introduction[2].
git-bug is only pushed forward by volunteers so it's taking its time to fully grow, so I'll take the opportunity to welcome everyone to join the fun :-)
[1]: https://github.com/MichaelMure/git-bug/releases/tag/v0.8.0
[2]: https://github.com/MichaelMure/git-bug/blob/master/doc/model...