The newest version is another preview, not the real game. So stop your bellyaching. Get the public version for a complete experience, hes doing what I too do when I am working on a large project. I compartmentalise as much as possible, basically creating each feature that can act as a stand alone on its own and then adding them in when the feature is done. This way old bugs that would be fixed as the project moves along would not interfere with what I was currently working on.
And no, those kinds of bugs arent the type you just "fix", they're usually bugs that makes the program crash because they require future components to be done first, but those components are no where ready to be made or would be too time consuming to make.
