You got that exactly right:
The status of the code base is basically the ending of day 2, but with the most recent api changes considered.
The bundle on the releases page contains the first version of the code base, which is no longer up to date.
We were originally hoping for the project to become sort of a collaborative effort together with our community (see readme), but unfortunately there doesn't seem to be much interest in that.
Therefore, we need to pick up the project again and deliver it by ourselves, but I don't have an ETA for that currently.